JP2559857B2 - Mist sauna equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is provided with a water heater that heats water supplied from a water supply channel and supplies water through a hot water supply channel at a water supply pressure in the water supply channel. The present invention relates to a mist sauna device provided with a mist nozzle for spraying hot water supplied to a sauna space through a hot water supply passage.

[Conventional technology]

In the mist sauna device having the above structure, conventionally, the spray pressure of the hot water sprayed from the mist nozzle into the sauna space is configured to use the original water supply pressure in the water supply passage as it is.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional technique, there is a possibility that the state of spraying warm water from the mist nozzle cannot be maintained in an appropriate state in which fine warm water mist is formed as much as possible.

In other words, depending on the area where this mist sauna device is installed, the original water supply pressure of the water supply channel may vary, and for example, the water supplied from the water supply channel may be used for another purpose.
The water supply pressure to the water supply passage in the water heater may fluctuate depending on the usage situation, but if the water supply pressure fluctuates in this way, the hot water spray pressure from the mist nozzle may fluctuate and cannot be maintained in an appropriate range. In such a state, there is a possibility that the state of hot water sprayed from the mist nozzle to the sauna space cannot be maintained in an appropriate state in which fine warm water mist is formed.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks and to obtain a mist sauna device which can always maintain the spray pressure within an appropriate range.

[Means for solving the problem]

To achieve this object, a characteristic configuration of the mist sauna device according to the present invention is that a pressurizing means for pressurizing and supplying hot water from the water heater to the nozzle is provided.

[Action]

For example, even if the water supply pressure of the water supply channel fluctuates due to some factor and the hot water supply pressure to the mist nozzle falls below the preset proper pressure, the hot water from the water heater can be supplied by the pressurizing means. Since the hot water is pressurized and supplied to the mist nozzle, the hot water supply pressure to the mist nozzle, that is, the hot water spray pressure from the mist nozzle can be maintained at an appropriate pressure.

〔The invention's effect〕

Therefore, by maintaining the hot water spray pressure from the mist nozzle at an appropriate pressure, it is possible to maintain the hot water spray state from the mist nozzle in an appropriate state in which a fine warm water mist is formed as much as possible, and Regardless of fluctuations, it is possible to always provide the same performance as the initial setting performance, and to provide a highly comfortable mist sauna device.

〔Example〕

 Next, examples will be described.

FIG. 1 shows a schematic configuration of hot water supply equipment. (1) is a hot water supply including a fin-tube type water heating heat exchanger (2), a burner (3), and a controller (4) as main constituent devices. The water heater is configured to heat the water supplied from the water supply passage (6) and supply the hot water through the hot water supply passage (5) at the water supply pressure in the water supply passage (6). The hot water supply passage (5) from the heat exchanger (2) is branched into a general hot water supply passage (5A) and a bath hot water supply passage (5B), and the bath hot water supply passage (5B) is further tub hot water supply passage (5B ₁ ) And a hot water supply channel for the sauna (5B ₂ ).

The general hot water supply passage (5A) is connected to a bypass passage (7) branched from the water supply passage (6) to the heat exchanger (2).

(8) is a heat exchanger (2) in the general hot water supply passage (5A)
A mixing valve for adjusting the mixing ratio of hot water supply from the hot water supply to the bypass water supply from the bypass passage (7), and (9) opening and closing the bath hot water supply passage (5B) and adjusting the amount of hot water supply in the bath hot water supply passage (5B). A bath valve (10) is a switching valve that selectively connects the bath hot water supply passage (5B) with the bath hot water supply passage (5B ₁ ) and the sauna hot water supply passage (5B ₂ ).

Among the above-mentioned corner hot water supply passages extending from the water heater (1), the general hot water supply passage (5A) is a hot water tap (11) such as a mixing tap or a shower tap.
, The bathtub hot water supply passage (5B ₁ ) is connected to the bathtub (12), and the sauna hot water supply passage (5B ₂ ) is connected to the mist nozzle (14) attached in the bathroom (13) as a sauna space. Has been done.

A pressurizing pump (15) as a pressurizing means for pressurizing and supplying hot water to the nozzle (14) is interposed in the hot water supply passage (5B ₂ ) for the sauna. Therefore, the hot water spray pressure from the mist nozzle (14) is maintained at a predetermined high pressure.

The operation modes to be implemented in this hot water supply facility are:
Basically, there are four types of hot water supply mode, hot water supply mode, additional hot water supply mode, and sauna mode. Furthermore, as a combination mode of those basic modes, a parallel execution mode of hot water supply and general hot water supply, additional heating There are three types of parallel execution modes of hot water supply and general hot water supply, and parallel execution modes of sauna and general hot water supply. The controller (4) in the hot water supply device (1) is configured to execute each of the above modes as follows.

[General hot water supply mode]

When the tap (11) is opened, the gas valve (17) for the burner (3) is opened in response to the water flow sensor (16) in the water supply passage (6) detecting the water flow generation. At the same time, the spark plug (18) is spark-operated to ignite the burner (3), and hot water supply to the hot water tap (11) is started.

Then, based on the deviation between the set general hot water supply temperature (ta) artificially set and the water supply temperature (ti) detected by the water supply temperature sensor (19), and the detected water supply amount (qi) of the water amount sensor (16), Set hot water temperature from heat exchanger (2) General hot water temperature (t
The combustion amount (g) required to be a) is calculated, and the combustion amount of the burner (3) is adjusted to the calculated combustion amount (g) by adjusting the gas amount adjusting valve (20).

Further, based on the deviation between the hot water supply temperature (to) detected by the first hot water supply temperature sensor (21) and the set general hot water supply temperature (ta), correction is added to the adjustment of the gas amount adjustment valve (20) described above. , The hot water supply temperature for the tap (11) is adjusted and maintained at the set general hot water supply temperature (ta).

In this general hot water supply mode, the bath valve (9) is closed, and the mixing valve (8) opens the general hot water supply passage (5A) and closes the bypass passage (7). .

When the tap (11) is closed, the gas valve (1) responds to the water flow sensor (16) detecting the water flow stop.
Extinguish the burner (3) by closing 7).

[Hot water supply mode]

Bath hot water supply route (5B) when a hot water supply start command is given
The switching valve (10) to the side communicated with the bathtub hot water supply passage (5B ₁ ) (hereinafter abbreviated as the bathtub side), the bath valve (9) is opened, and the bath valve (9) is opened. In response to the water flow generation detection of the water quantity sensor (16) accompanying the valve, the burner (3) is ignited in the same manner as in the case of the general hot water supply mode described above,
Therefore, hot water supply to the bathtub (12) is started.

Then, with the bath valve (9) adjusted to the set upper limit opening, the deviation between the artificially set hot water supply temperature (tb) and the detected hot water supply temperature (ti) and the detected water supply amount (qi) Based on this, the combustion amount (g) required to make the hot water supply temperature from the heat exchanger (2) the set hot water supply temperature (tb) is calculated, and the calculated combustion amount (g) is the maximum combustion amount of the burner (3). In the case of (g _max ) or less, the burner (3) is adjusted by adjusting the gas amount adjusting valve (20) while keeping the opening of the bath valve (9) at the set upper limit opening.
Is adjusted to the calculated combustion amount (g), while the calculated combustion amount (g) is larger than the maximum combustion amount (g _max ),
With the combustion amount of the burner (3) adjusted to the maximum combustion amount (g _max ) by adjusting the gas amount adjusting valve (20), the deviation between the set hot water supply temperature (tb) and the detected supply water temperature (ti), and The opening degree of the bath valve (9) is adjusted until the calculated combustion amount (g) calculated based on the detected supply water temperature (qi) decreases to the maximum combustion amount (g _max ).

In either case, the adjustment of the gas amount adjusting valve (20) described above is performed based on the deviation between the hot water supply temperature (to) detected by the first hot water supply temperature sensor (21) and the set hot water supply hot water temperature (tb). A correction is added to the adjustment of the bath valve (9) so that the hot water supply temperature for the bathtub (12) is adjusted and maintained at the set hot water supply temperature (tb).

In this hot water supply mode, the mixing valve (8)
Open the general hot water supply passage (5A) and bypass passage (7)
Is closed.

When a hot water supply stop command is given or the accumulated value of the hot water supply to the bathtub (12) after starting hot water supply reaches the set hot water supply amount, the bath valve (9) is closed. In addition, the burner (3) is extinguished by closing the gas valve (17) in response to the water flow stop detection of the water amount sensor (16) accompanied therewith, thus ending the hot water supply to the bathtub (12). .

[Additional hot water supply mode]

A hot water heating start command is given, or the stored hot water temperature (tp) of the bathtub (12) detected by the hot water storage temperature sensor (22) is the set hot water temperature (in this case, the set hot water supply temperature (tb)
Is set to a set storage hot water temperature) or more than the allowable limit width, the switching valve (10) is switched to the bathtub side and the bath valve (9) is opened, as in the case of the hot water supply mode described above. In addition to opening the valve, the burner (3) is ignited in response to the water flow generation detection of the water amount sensor (16), and hot water supply to the bathtub (12) is started.

Then, the bath valve (9) is adjusted to the preset additional heating limit opening that is set for safety, and the set temperature hot water supply temperature (tc) that is fixedly set (for example, high temperature of 93 ° C.) Between the detected water supply temperature (ti) and the detected water supply amount (q
Based on i), the combustion amount (g) required to set the hot water supply temperature from the heat exchanger (2) to the set additional hot water supply temperature (tc) is calculated,
By adjusting the gas amount adjusting valve (20), the combustion amount of the burner (3) is adjusted to the calculated combustion amount, and the first hot water supply temperature sensor (2
Based on the difference between the hot water supply temperature (to) detected by 1) and the set hot water supply hot water temperature (tc), the adjustment of the gas amount adjustment valve (20) is corrected to set the hot water supply temperature for the bathtub (12). Adjust and maintain the hot water temperature (tc).

In addition, in the additional heating hot water supply mode, the mixing valve (8)
Makes both the general hot water supply passage (5A) and the bypass passage (7) open.

Whether the hot water heater stop command is given, or whether the detected stored hot water temperature (tp) rises to the set stored hot water temperature and recovers,
Alternatively, when the integrated value of the amount of additional hot water supplied to the bathtub (12) after starting the additional hot water supply reaches the set additional heating amount, the bath valve (9) is closed as in the hot water supply mode. At the same time, the burner (3) is extinguished by closing the gas valve (17) in response to the water flow stop detection of the water amount sensor (16), and thus the bathtub (12) for heating hot water in the bathtub (12). ) End hot water heating.

The bathtub (1) detected by the stored hot water temperature sensor (22)
The start and stop of additional hot water supply based on the stored hot water temperature (tp) in 2) is given a separate appropriate temperature keep command,
Further, it is executed only when the hot water storage amount of the bathtub (12) detected by the storage amount sensor (not shown) is equal to or more than the set lower limit amount.

[Sauna mode]

When the sauna operation start command is given, the bath hot water supply channel (5
B) is connected to the hot water supply passage for the sauna (5B ₂ ) (hereinafter referred to as the sauna side), the switching valve (10) is switched, and the bath valve (9) is opened. The burner (3) is ignited in response to the detection of the water flow generation of the water amount sensor (16) accompanying the opening of the valve (9), and further, the pressurizing pump (15) is activated, and thus the mist nozzle (14) is discharged. Start hot water supply.

In addition, by adjusting the gas amount adjusting valve (20) based on the room temperature (tr) of the bathroom (13) detected by the room temperature sensor (23) to adjust the hot water supply temperature from the heat exchanger (2), the sauna The room temperature of the bathroom (13) as a room is adjusted and maintained at the artificially set room temperature (tro).

Specifically, set room temperature (tro) and detection room temperature (t
From r), the target hot water supply temperature (ts) is calculated based on the following equation (a), and (tro-tr) / 2 + tro = ts ………… (a) Furthermore, this calculated target hot water supply temperature (ts) and detected water supply temperature (Ti)
Based on the deviation from the above, and the detected water supply amount (qi), calculate the combustion amount (g) required to make the hot water supply temperature from the heat exchanger (2) the calculated target hot water supply temperature (ts), and adjust the gas amount. The combustion amount of the burner (3) is adjusted to the calculated combustion amount (g) by adjusting the valve (20).

Further, similar to the other modes described above, the gas amount adjusting valve (20) is based on the deviation between the hot water supply temperature (to) detected by the first hot water supply temperature sensor (21) and the calculated target hot water supply temperature (ts). Is corrected to adjust the hot water supply temperature to the mist nozzle (14) to the target hot water supply temperature (ts) calculated by the above equation (a).

Then, the above-described type of reading the detected room temperature (tr), calculating the target hot water supply temperature (ts) for the read detected room temperature (tr), and adjusting the gas amount adjustment valve (20) for the calculated target hot water supply temperature (ts) The control operation of is repeatedly executed every predetermined time even after the hot water supply is started, whereby the room temperature (tr) of the bathroom (13) is adjusted and maintained at the set room temperature (tro).

In the above formula (a), the detected room temperature (tr) is still low at the beginning of sauna operation, and the detected room temperature (tr) and the set room temperature (tr)
The larger the deviation from o), the higher the target hot water supply temperature (ts) will be to speed up the rise of room temperature.
It is set to suppress the overshoot at room temperature by multiplying the term of −tr) by a coefficient of 1/2, and FIG. 2 is adjusted as described above based on this equation (a). 2 is a graph showing the relationship between the hot water supply temperature (to) for the mist nozzle (14) and the detected room temperature (tr) over time.

Note that the calculated target hot water supply temperature (ts) calculated based on equation (a)
Is the set upper limit hot water supply temperature (in this example, the set additional hot water supply temperature (t
If the temperature becomes higher than the value equal to (c)), the hot water supply temperature (hot water supply temperature (to) from the heat exchanger (2)) to the mist nozzle (14) is adjusted to the set upper limit hot water supply temperature. .

In this sauna mode, the bath valve (9) is fully opened, and the mixing valve (8) is in a state in which both the general hot water supply passage (5A) and the bypass passage (7) are opened.

When the sauna shutdown command is given, the pressure pump (1
5) is stopped, the bath valve (9) is closed, and the burner (3) is extinguished by closing the gas valve (17) in response to the water flow stop detection of the water amount sensor (16) accompanying it. ,
Therefore, the hot water supply to the mist nozzle (14) for implementing the sauna in the bathroom (13) is completed.

[Parallel hot water supply mode and general hot water supply mode]

In the middle of executing the above-mentioned hot water supply mode, tap tap (1
When 1) is opened, the opening is recognized by detecting the flow of hot water in the general hot water supply passage (5A) by the hot water amount sensor (24), but the hot water supply mode is continuously executed as the execution mode.

If a hot water supply start command is given during execution of the general hot water supply mode described above, the execution mode is switched from the general hot water supply mode to the hot water supply hot water supply mode, and the switching valve (10) is switched to the bathtub side and the bath. Open valve (9), and
The adjustment target of the hot water supply temperature (to) from the heat exchanger (2) is set as the set hot water supply hot water temperature (tb).

That is, in any case, hot water is supplied at the set hot water supply temperature (tb) to both the bathtub (12) and the tap (11) in a state where the hot water supply temperature of hot water supply has priority.

In the hot water supply mode, the amount of hot water supplied to the bathtub (12) is basically calculated by adding the detected water supply amount (qi) of the water amount sensor (16). Water sensor (16) during parallel implementation with
The value obtained by subtracting the hot water amount (qoo) detected by the hot water amount sensor (24) from the detected water supply amount (qi) is accumulated.

[Parallel hot water supply mode and general hot water supply mode]

During the execution of the above-mentioned additional heating hot water supply mode, the tap (1
When 1) is opened, the additional heating hot water supply mode is continuously executed as the execution mode, but mixing is performed in response to the hot water flow sensor detection of the hot water amount sensor (24) accompanying the opening of the hot water tap (11). Second hot water temperature sensor (25) by adjusting the mixing ratio with the valve (8)
Mixing control to adjust the detected hot water supply temperature (too) to the set general hot water supply temperature (ta) is started.

Further, when the additional hot water supply start command is given during the execution of the general hot water supply mode, the execution mode is switched from the general hot water supply mode to the additional hot water supply mode, and the switching valve (10) is switched to the bathtub side and the bath Open valve (9), and
The target for adjusting the hot water supply temperature (to) from the heat exchanger (2) is set to the set additional hot water supply temperature (tc), and further, the above mixing control by adjusting the mixing valve (8) is started.

That is, in any case, the hot water supply temperature (to) from the heat exchanger (2) is set as the set additional hot water supply temperature (tc), and the bathtub (1
While performing additional heating hot water at the set additional heating hot water temperature (tc) for 2), for the tap (11), the hot water at the set additional heating hot water temperature (tc) from the heat exchanger (2) Hot water is supplied at the set general hot water temperature (ta) by adjusting the mixing ratio with the water supplied from the bypass (7) by the mixing valve (8).

In addition, in the additional hot water supply mode, the additional hot water supply amount to the bathtub (12) is basically integrated by adding the detected water supply amount (qi) of the water amount sensor (16) as in the case of the hot water supply mode. During the parallel execution of additional hot water supply and general hot water supply, the detected water supply amount (qi) of the water amount sensor (16), the detected hot water amount (qoo) of the hot water amount sensor (24), the detected water supply temperature (ti), the set additional heating Hot water supply temperature (tc) (or detected hot water supply temperature (to) of first hot water supply temperature sensor (21)) and set general hot water supply temperature (ta) (or detected hot water supply temperature of second general hot water supply temperature sensor (25) ( to
Based on o)), the actual amount of additional hot water supplied to the bathtub (12) is calculated, and the calculated value is integrated.

[Parallel mode for sauna and general hot water supply]

Bath tap (11) during execution of the above-mentioned sauna mode
When is opened, the sauna mode is continued as the execution mode, but in response to the hot water flow sensor detection of the hot water amount sensor (24) accompanying the opening of the hot water tap (11), the mixing valve (8) Start mixing control by adjustment.

When a sauna operation start command is given during the execution of the general hot water supply mode, the execution mode is switched from the general hot water supply mode to the sauna mode, the switching valve (10) is switched to the sauna side, and the bath valve (9 ) Is opened, the pressurizing pump (15) is started, and the heat exchanger (2) is opened.
The target for adjusting the hot water supply temperature (to) from (1) is set to the calculated target hot water supply temperature (ts) by the above-mentioned formula (a), and further, the mixing control by adjusting the mixing valve (8) is started.

In any case, the calculated target hot water supply temperature (ts)
Of the calculated target hot water supply temperature (ts) from the heat exchanger (2) and the bypass path (7). ) Is adjusted by the mixing valve (8) with the mixing water (8), and the hot water temperature (too) detected by the second hot water temperature sensor (25) is adjusted to the set general hot water temperature (ta). Only when the hot water supply temperature (ts) (or the detected hot water supply temperature (to) of the first hot water supply temperature sensor (21)) is higher than the set general hot water supply temperature (ta), the calculated target hot water supply temperature (ts) (or , The hot water temperature detected by the first hot water temperature sensor (21) (to) is set General hot water temperature (ta)
In the following cases, the mixing valve (8) opens the general hot water supply passage (5A) and closes the bypass passage (7).

That is, in the parallel execution mode of the sauna and the general hot water supply, the hot water supply temperature (to) from the heat exchanger (2) is the mist as the calculated target hot water supply temperature (ts) calculated according to the detected room temperature (tr). Calculated target hot water supply temperature for nozzle (14) (t
While performing hot water supply in (s), the tap water (11) is supplied at the set general hot water temperature (ta), or if it is impossible due to the configuration, the set general hot water temperature (ta) Also, the hot water is supplied at the target hot water supply temperature (ts) for the constant temperature calculation.

In FIG. 1, (26) and (27) respectively give an operation start / stop command in each of the above-mentioned modes and set values (ta, t).
b, tro, etc.) is a main remote controller and a sub-remote controller. The sub-remote controller (27) is, for example, a sauna bather who sets a room temperature (tro ) Etc. are arranged in the bathroom (13) so that the settings can be changed according to preference.

Also, the main remote controller (26) and the sub remote controller (27) are designed so that different values can be set for one kind of set value, but the value set by the sub remote controller (27) is The configuration is adopted and implemented only when the priority switch of the remote controller (27) is turned on.

The room temperature sensor (23) is attached to the sub remote controller (27).

[Another embodiment]

Although the pressurizing pump is used as the pressurizing means (15) in the above embodiment, an air compressor may be used. That is, as shown in FIG. 3, the air compressor (1
The hot water of the sauna hot water supply channel (5B ₂ ) is mixed as mist with the air pressurized by 5) and sprayed on the bathroom (13).

The heat source of the water heater (1) is not limited to gas, but electric or liquid fuel can be used.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of the mist sauna device according to the present invention,
FIG. 1 is an overall configuration diagram, FIG. 2 is an explanatory diagram showing changes with time of hot water supply temperature and bath room temperature, and FIG. 3 is an overall configuration diagram showing another embodiment. (1) …… Hot water heater, (5) …… Hot water supply passage, (6) …… Water supply passage, (13) …… Sauna space, (14) …… Mist nozzle,
(15) …… Pressurizing means.

Front page continuation (72) Kenji Nishimoto 1-52-1 Oka Minami-shi Minato-ku, Osaka-shi, Osaka Prefecture Harman Co., Ltd. (72) Takao Sasai 1-1-52 Mina-shi Oka, Minato-ku, Osaka Prefecture Osaka Prefecture Harman et al. (56) Reference JP-A-2-63460 (JP, A) Jitsukai HEI 2-147127 (JP, U)

Claims (1)

(57) [Claims] 1. A hot water supply passage (5) is provided by heating the water supplied from the water supply passage (6) and applying the water supply pressure in the water supply passage (6).
A mist sauna device comprising: a water heater (1) for supplying water through the hot water supply passage (5); and a mist nozzle (14) for spraying the hot water supplied through the hot water supply passage (5) into a sauna space (13). A mist sauna apparatus provided with a pressurizing means (15) for pressurizing and supplying hot water from the vessel (1) to the nozzle (14).