JP5122261B2 - Bath facilities - Google Patents

Description

The present invention is a hot water treatment section for bath that performs hot water supply processing for supplying hot water adjusted in temperature to a bathtub,
A target hot water state setting means for setting a target water level for filling the bathtub and a target temperature for hot water filling the bathtub;
A hot water filling command means for instructing the start of hot water filling,
As the hot water start command is instructed by the hot water filling command means, the hot water treatment section for bath is operated based on the target water level and the target temperature set by the target hot water filling state setting means. The present invention relates to a bath facility provided with operation control means for performing hot water filling operation.

  When the start of hot water filling is instructed by the hot water filling instruction means, the bath equipment is based on the target water level and target temperature set by the target hot water filling state setting means by the operation control means, and the hot water treatment section for bath The hot water operation which operates is performed.

  As a conventional example of such bath facilities, a hot water treatment section for bath supplies a bath with hot water having a temperature setting that is higher than a normal bathing temperature (for example, 90 ° C.) to make a bath. In the apparatus configured to be able to perform processing, as a hot water filling command means for instructing the start of hot water filling, a hot water filling switch for instructing a hot water filling operation to fill the target hot water state, and the target hot water filling state is maintained. An appropriate temperature and appropriate amount keep switch for instructing a proper temperature and appropriate amount keep operation is provided. Further, a drain means for draining hot water in the bathtub, a hot water temperature detecting means for detecting the temperature of the hot water in the bathtub, and a hot water level detection for detecting the hot water level in the bathtub. Means are provided, and the operation control means is configured as follows.

In other words, when the operation control means is instructed to start filling with the appropriate temperature and proper amount keep switch, when the detected water level of the hot water level detecting means is equal to or higher than the target water level and the detected temperature of the hot water temperature detecting means is equal to or higher than the target temperature, When the detected temperature of the hot / cold water temperature detecting means is lower than the target temperature without performing processing for making the temperature of the hot water the target temperature and the hot water level becomes the target water level, and the detected water level of the hot / cold water level detecting means When the water temperature is lower than the target water level, the operation of each of the hot water treatment unit for bath and the draining means is controlled so that the temperature of the hot water becomes the target temperature and the water level becomes the target water level.
Specifically, when the operation control means is instructed to start filling with an appropriate temperature and proper amount keep switch, when the detected temperature of the hot water temperature detecting means is lower than the target temperature, the detected temperature of the hot water temperature detecting means is the target temperature. The hot water treatment section for the bath is operated so as to supply hot water at the memorial set temperature to the bathtub until the detected temperature level of the hot water level detecting means becomes equal to the target temperature. When the water level is higher than the target water level, the drainage means is operated to drain hot water in the bathtub until the detection water level of the hot water detection means reaches the target water level, and when the detection water level of the hot water level detection means is lower than the target water level, The hot water treatment section for bath is configured to operate so as to supply hot water at a target temperature to the bathtub until the detected water level of the hot water detection means reaches the target water level.
In addition, when the operation control means is instructed to start filling with a filling switch, the hot water treatment section for bath supplies water so that the temperature of the hot water becomes the target temperature and the water level becomes the target water level. (For example, refer patent document 1).
Although not described in Patent Document 1, even if the operation control means is instructed to start filling by the filling switch, the detected water level of the hot water level detection means is equal to or higher than the target water level and the hot water temperature detection means. When the detected temperature is equal to or higher than the target temperature, it is considered that the special processing is not performed.

  Moreover, as another conventional example of bath equipment, the hot water treatment section for bath is configured so as to perform a memorial process for heating hot water in a bathtub, and as a hot water filling instruction means for instructing the start of hot water filling, An automatic switch for instructing a hot water filling operation to fill the hot water state and a keep operation to maintain the target hot water state is provided, and further a hot water temperature detecting means for detecting the temperature of the hot water in the bathtub and the hot water level of the bathtub There are some which are provided with hot water level detection means for detecting the above and the operation control means is configured as follows.

That is, when the automatic switch is turned on, the operation control means executes the hot water filling operation, and in the hot water filling operation, hot water is supplied so that the temperature of the hot water becomes the target temperature and the water level becomes the target water level. As much as possible, the hot water treatment section for the bath is operated, and after the hot water filling operation, the keep operation is performed. In the keep operation, when the detected temperature of the hot water temperature detecting means is lower than the target temperature, the temperature of the hot water reaches the target temperature. The hot water treatment section for bath is operated so as to execute the memorial process, and when the detected water level of the hot water level detector is lower than the target water level, the hot water at the target temperature is set so that the hot water level becomes the target water level. It was comprised so that the hot-water treatment part for baths might be operated so that it might supply to (for example, refer patent document 2).
Although not described in Patent Document 2, the operation control means is configured such that the detected water level of the hot and cold water level detecting means is equal to or higher than the target water level and the detected temperature of the hot and cold water temperature detecting means is the target even if the automatic switch is turned on. When the temperature is higher than the temperature, it is considered that the special processing is not performed.

JP 2001-141299 A JP 2006-125805 A

By the way, there is a case where bathing in a hot water filled state for half body bathing, in which the temperature of hot water is lower than the temperature for normal bathing and the water level of the hot water is lower than the water level for ordinary bathing, so-called half body bathing may be desired. is there. By the way, the temperature of normal hot water for bathing is, for example, 40 to 43 ° C, the temperature of hot water for half body bathing is, for example, 35 to 40 ° C, and the level of normal hot water for bathing is, for example, The water level is such that when a person sits in the bathtub, the height is between the chest and shoulders of the person. The water level is at the waist level.
And bathing in a half-body bath may be performed after a person bathed in a normal bathing condition, and in such a case, the bathtub is already in a normal bathing condition. It will be filled with hot water.

  However, in the bath facilities of Patent Document 1 and Patent Document 2, when the hot water start command is instructed by the hot water commanding means, the hot water is already filled in the bathtub, and the detected water level of the hot water level detector is the target hot water. When the detected water temperature is equal to or higher than the target water level set by the tension setting means and the detected temperature of the hot water temperature detection means is equal to or higher than the target temperature set by the target hot water condition setting means, the temperature of the hot water becomes the target temperature and Since no processing is performed to bring the hot water level to the target water level, the target hot water condition setting means is used when the bathtub is already filled with the normal hot water condition. Even if you set the target water level and target temperature for half-body bathing and command the start of filling with the filling command means, the filling condition for normal bathing that has already been filled is still filled for half-body bathing. Automatically change adjustment to state There is no be.

  Therefore, in order to change the normal hot water filling state to the half bathing state, the user throws away the hot water in the bathtub to some extent by pumping out the hot water from the bathtub or pulling out the drain plug. After that, it is necessary to add water so that the desired temperature for half bathing is obtained and the desired water level for half bathing is obtained.

In addition, when the appropriate temperature and appropriate amount keep switch of Patent Document 1 is used, the temperature of the hot water in the bathtub is lower than the desired temperature after the hot water in the bathtub has been discarded to some extent by pumping out the hot water in the bathtub or pulling out the drain plug. After water was supplied in such a way, it was necessary to set the target water level and target temperature for half-body bathing with the target hot water filling state setting means, which was inconvenient.
In addition, when using the hot water filling switch of Patent Document 1 or the automatic switch of Patent Document 2, the drain plug is once drained to drain the hot water in the bathtub, and the target water level and target for half-body bathing are set by the target hot water filling state setting means. After setting the temperature, it is necessary to instruct the start of hot water filling using the hot water filling switch of Patent Document 1 or the automatic switch of Patent Document 2, which is inconvenient.

  The present invention has been made in view of such circumstances, and its purpose is to automatically change and adjust a normal bathing state for bathing to a bathing state for half-body bathing. The purpose is to provide bath facilities that are easy to use.

The bath equipment of the present invention is a hot water treatment section for bath that performs hot water supply processing for supplying hot and cold water adjusted to a bathtub,
A target hot water state setting means for setting a target water level for filling the bathtub and a target temperature for hot water filling the bathtub;
A hot water filling command means for instructing the start of hot water filling,
As the hot water start command is instructed by the hot water filling command means, the hot water treatment section for bath is operated based on the target water level and the target temperature set by the target hot water filling state setting means. Operation control means for performing hot water filling operation,
The first characteristic configuration is provided with drainage means for draining hot water in the bathtub, hot water temperature detection means for detecting the temperature of the hot water in the bathtub, and hot water level detection means for detecting the level of hot water in the bathtub,
When the operation control means is instructed to start filling by the hot water filling instruction means, the hot water level detecting means detects hot water more than the water level for drainage determination and the hot water temperature detecting means detects it. When the temperature of the hot water to be performed is higher than the target temperature, the drain means is operated to drain the hot water so that the water level of the bathtub reaches the set drainage water level, and then the water level of the bathtub Supplying hot water to the bathtub so that the hot water level of the bathtub becomes the target water level while adjusting the hot water temperature so that the hot water temperature of the bathtub becomes the target temperature when the target water level is reached It is configured to perform drainage addition type hot water operation for operating the hot water treatment section for bath ,
The hot water treatment unit for bath is configured to supply hot water through a circulation adapter equipped on the lower side of the side wall of the bathtub,
The drainage means is configured to discharge hot water through the circulation adapter;
The drainage discrimination water level is the target water level, and the set drainage water level is a water level corresponding to the installation height of the circulation adapter,
When the operation control means is in the draining hot water filling operation, the hot water level detection means detects hot water higher than the target water level, and the hot water temperature detected by the hot water temperature detection means is the target temperature. When the temperature is higher than the temperature, the drain means is operated to drain the hot water so that the level of the hot water in the bathtub becomes the set drainage water level, and then the unheated water that has not been heated is moved by the hot water temperature detecting means. After supplying the hot water to the bathtub until the temperature of the detected hot water reaches the target temperature, the hot water treatment section for bath is supplied to supply the hot water of the target temperature to the bathtub until the water level of the bathtub reaches the target water level. In that it is configured to operate .

That is, when the hot water filling commanding unit is instructed to start the hot water filling operation, the hot water level detecting unit detects more hot water than the drainage determination water level, and the hot water temperature detecting unit detects the hot water. When the hot water temperature is higher than the target temperature, the drainage means is operated to drain the hot water so that the hot water level in the bathtub becomes the set drainage water level, and then the hot water level in the bathtub reaches the target water level. Addition of drainage to operate the hot water treatment section for bath to supply hot water to the bathtub so that the hot water level of the bathtub is adjusted to the target water level while adjusting the hot water temperature so that the temperature of the hot water of the bathtub becomes the target temperature Perform the hot water operation of the ceremony.
The drainage discrimination water level is set so that the water level is lower than the normal bathing water level, and when the bathtub is already filled with normal bathing water, the target hot water level is set. When the target temperature for half-body bathing and the target water level for half-body bathing are set by the tension state setting means, more hot water than the water level for drainage determination is detected by the hot water level detection means, and more than the target temperature by the hot water temperature detection means. Also make sure that the temperature of hot water is high.

  In other words, when bathing in a half bath when the bathtub is already filled in a normal bathing condition, the target temperature for half bathing and the target water level for half bathing are set by the target bathing condition setting means. When the start of filling is instructed by the filling command means, the hot water level detection means detects more hot water than the water level for drainage discrimination, and the hot water temperature detection means has hot water higher than the target temperature. Therefore, the operation control means performs the draining type hot water filling operation, so that the normal hot water filling state for bathing is already hot water for half body bathing. It will be automatically changed and adjusted to the tension state.

Moreover, after draining the hot water from the bathtub so that the hot water level of the bathtub becomes the set drainage water level, the hot water of the bathtub is adjusted so that the hot water level of the bathtub becomes the target water level and the hot water temperature of the bathtub becomes the target temperature. By supplying hot water to the bathtub so that the temperature of the hot water in the bathtub becomes the target temperature, less hot water than when draining hot water from the bathtub so that the level of the hot water in the bathtub becomes the target water level. Since the temperature of the hot water in the bathtub can be lowered to the target temperature, the amount of hot water discharged from the bathtub can be reduced, and the temperature of the hot water in the bathtub becomes the target temperature and the water level is reduced. The supply amount of hot water for supplying hot water so as to reach the target water level can be reduced.
Therefore, while reducing the amount of water consumed, it is possible to automatically change and adjust the normal bathing condition for bathing, which has already been filled, to a bathing condition for half body bathing. I was able to do that.
Further, according to the first characteristic configuration, the operation control means is configured such that the temperature of the hot water detected by the hot water temperature detecting means reaches the target temperature in the hot water filling operation of the drainage addition type. After supplying to the bathtub, the hot water treatment unit for bath is operated to supply hot water of the target temperature to the bathtub until the water level of the bathtub reaches the target water level.
In other words, since the temperature of the hot water in the bathtub is lowered to the target temperature by supplying non-heated water, the temperature of the hot water in the bathtub can be lowered efficiently, so that the amount of hot water discharged from the bathtub can be reduced. Therefore, the amount of hot water for supplying hot water so that the temperature of the hot water in the bathtub becomes the target temperature and the water level becomes the target water level can be reduced. The amount can be reduced, and the energy consumption in the hot and cold water treatment section for bath can be reduced.
Moreover, when the hot water in the bathtub is drained because the hot water of the target temperature is supplied to the bathtub until the water level of the bathtub reaches the target water level after the temperature of the hot water in the bathtub is lowered to the target temperature by supplying non-heated water. It is not necessary to set the set drainage water level that is the target of the water accurately, and it is only necessary to set it in advance, so the process for setting the set drainage water level based on the temperature of hot water already filled is omitted. As a result, the control configuration can be simplified and the cost of the equipment can be reduced.
Accordingly, it is possible to automatically adjust the hot water filling state to the half bathing state while reducing water consumption and saving energy, and to reduce the cost of the equipment. It became so.

In addition to the first feature configuration, the second feature configuration is
The hot water treatment section for bath is configured to perform a memorial process for heating hot water in the bathtub,
After the operation control means performs the draining type hot water filling operation, when the temperature of the hot water detected by the hot water temperature detection means is lower than the target temperature, the hot water in the bathtub is changed to the target temperature. The hot water / water treatment section for bath is configured to operate so as to cause the memorial process to be heated.

  That is, the operation control means heats the hot water in the bathtub to the target temperature when the hot water temperature detected by the hot water temperature detecting means is lower than the target temperature after the drainage-added hot water filling operation is performed. The hot water treatment section for bath is operated so as to perform the memorial process.

In other words, the hot water level in the bathtub is adjusted so that the bath water temperature is adjusted to the target temperature when the hot water level in the bathtub reaches the target water level. By simply supplying hot water to the bathtub so that the water level is reached, the temperature of the hot water in the bathtub can be accurately adjusted to the target temperature due to heat dissipation from the hot water in the bathtub, variations in the supply temperature of the hot water, variations in the temperature of the hot water in the bathtub, etc. However, if the hot water temperature is lower than the target temperature after the drainage type hot water filling operation is performed, the hot water in the bathtub is heated to the target temperature in the remedy process. The hot water filling can be performed in the hot water filling state where the temperature of the hot water becomes the target temperature or a temperature as close as possible to the target temperature.
Therefore, the automatic change adjustment of the hot water filling state to the hot water filling state for half body bathing can be performed more appropriately in a state where the temperature of the hot water becomes a target temperature or a temperature as close as possible to the target temperature.

[First Embodiment]
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment according to the invention will be described with reference to the drawings.
As shown in FIG. 1, the bath facility controls a heat source machine G as a bath hot water treatment unit that performs hot water supply processing for supplying temperature-adjusted hot water to the bathtub Y and the hot water tap 2, and operation of the heat source machine G. And a main remote controller R1 and a bathroom remote controller R2 for instructing the operation controller C to perform various control commands. Incidentally, the main remote controller R1 is provided near the kitchen, etc., and the bathroom remote controller R2 is provided in the bathroom where the bathtub Y is installed.

Hereinafter, the heat source machine G will be described.
As shown in FIG. 1, the heat source machine G heats water from a water supply channel 1 connected to a general household water pipe with a gas combustion burner g1, and supplies hot water after heating to a hot water tap 2 or Hot water circulation heating unit B for heating hot water supplied to the heat consuming terminal U or chasing hot water in the bathtub Y by a heating unit A for hot water supply for supplying to the bathtub Y and a gas combustion burner g2. Etc. are provided. Incidentally, as the heat consuming terminal U, for example, a bathroom heater / dryer, a floor heater or the like is provided.

The hot water heating unit A and the hot water circulation heating unit B will be described.
Each of the hot water supply heating unit A and the hot water circulation heating unit B includes a main heat exchanger N1 and a latent heat recovery type heat exchanger (hereinafter sometimes referred to as a latent heat recovery heat exchanger) N2. The main heat exchanger N1 and the latent heat recovery heat exchanger N2 are configured such that the combustion exhaust gas in a state where the latent heat recovery heat exchanger N2 is located on the lower side in the combustion exhaust gas flow direction from the burners g1 and g2 to the exhaust passage 5. They are arranged along the flow direction.
Then, in the latent heat recovery heat exchanger N2, the hot water is heated mainly by the latent heat of the combustion exhaust gas of each burner g1, g2, and in the main heat exchanger N1, mainly by the sensible heat of the combustion exhaust gas of each burner g1, g2. The hot water heated by the latent heat recovery heat exchanger N2 is heated.

From each latent heat recovery heat exchanger N2, acidic condensate that is combustion generated water, that is, the drain is generated. This drain is collected by the drain pan 6 and supplied to the neutralizer 7, and the neutralizer After being neutralized at 7, it is configured to be stored in the drain tank 8. Although not described in detail, the neutralizer 7 is loaded with a neutralizing agent (for example, calcium carbonate) that neutralizes the drain. The drain tank 8 is provided with an upper limit sensor 8s for detecting that the amount of drain stored in the drain tank 8 is equal to or greater than the upper limit storage amount.
Then, the drain stored in the drain tank 8 is sent out through the drain drain pipe 4 by the drain drain pump 9 and discharged from the drain port D provided on the floor surface of the bathroom.

  A gas supply path K for supplying general household fuel gas is connected to each of the burners g1 and g2 to the hot water supply heating section A and the hot water circulation heating section B, and a fuel gas supply is supplied to the gas supply path K. An electromagnetic gas proportional valve 10 for adjusting the amount and an intermittent valve 11 for intermittently supplying fuel gas are provided. The heating unit A for hot water supply and the heating unit B for circulating hot water are provided with combustion fans 12 for supplying combustion air to the burners g1 and g2, and further, although not shown, In the vicinity of g2, an ignition igniter for performing an ignition operation and a frame rod for detecting whether or not ignition is performed are provided.

  The hot water supply path 3 is connected to the hot water inlet of the latent heat recovery heat exchanger N2 in the hot water supply heating section A, and the hot water supply path 3 connected to the tip of the hot water tap 2 is the main heat exchange in the hot water supply heating section A. It is connected to the hot water outlet of the water heater N1 so that water supplied through the water supply passage 1 is heated by the latent heat recovery heat exchanger N2 and the main heat exchanger N1 and supplied to the hot water tap 2 through the hot water supply passage 3. It is configured.

The water supply channel 1 is provided with a water supply thermistor 13 for detecting the water supply temperature and a water amount sensor 14 for detecting the water supply amount, and is located downstream of the water supply thermistor 13 and the water amount sensor 14 in the water supply channel 1. And the hot water supply path 3 are connected by a water supply bypass path 15 so as to bypass the heat exchangers N1 and N2.
A mixing valve 17 that adjusts the mixing ratio between the amount of hot water from the main heat exchanger N1 and the amount of water from the water supply bypass passage 15 is provided at a connection point between the hot water supply passage 3 and the water supply bypass passage 15, and the water supply passage is provided. The hot water thermistor 16 for detecting the temperature of the hot water sent from the main heat exchanger N1 is provided on the upstream side of the connection location of the water supply bypass passage 15 in FIG. On the downstream side of the connection point, in order from the upstream side, a hot water supply thermistor 18 for detecting the temperature of hot water after mixing by the mixing valve 17, a water proportional valve 19 for adjusting the amount of hot water, and an interruption of general hot water supply are provided. An interrupting water amount sensor 20 for detection is provided.

The hot water outlet part of the heat consuming terminal U and the inlet part of the latent heat recovery heat exchanger N2 in the hot water circulation heating part B are connected by a return path 21 for hot water circulation, and the main heat in the hot water circulation heating part B The hot water outlet part of the exchanger N1 and the hot water inlet part of the heat consuming terminal U are connected by a warm water circulation return path 22, and an expansion tank 23 is interposed in the return path 21 for hot water circulation. In the warm water circulation return path 21, downstream of the expansion tank 23, the hot water in the expansion tank 23 is sucked and sent to the latent heat recovery heat exchanger N 2 of the warm water circulation heating section B. A pump 24 is provided.
Then, hot water circulates across the latent heat recovery heat exchanger N2, the main heat exchanger N1, and the heat consuming terminal U through the warm water circulation forward path 22 and the warm water circulation return path 21 by the flow action of the hot water circulation pump 24. Thus, the hot water heated by the latent heat recovery heat exchanger N2 and the main heat exchanger N1 is circulated and supplied to the heat consuming terminal U.

  The warm water circulation path 22 includes a circulating hot water thermistor 25 that detects the temperature of hot water after being heated by the latent heat recovery heat exchanger N2 and the main heat exchanger N1, and hot water to the heat consuming terminal U. A terminal thermal valve 26 for intermittent supply is provided.

A location upstream of the expansion tank 23 in the warm water circulation return path 22 and the warm water circulation return path 21 is connected by a warm water circulation bypass path 27 that bypasses the heat consuming terminal U and circulates hot water. The bypass path 27 is provided with a remedy heat exchanger 28 and a remedy heat valve 29 for remedying hot water in the bathtub Y.
The hot water outlet part of the heat exchanger for remedy 28 and the circulation adapter 30 provided on the lower side of the side wall of the bathtub Y are connected by a bathtub outgoing path 31, and the circulation adapter 30 and the heat exchanger for remedy The hot water inlet of 28 is connected to the return path 32 for bathtub, and the circulation pump for remedy so that the hot water of the bathtub Y is sucked into the return path 32 for tub and sent to the heat exchanger 28 for remedy. 33 is provided.
The hot water of the bathtub Y is circulated and supplied to the heat exchanger 28 for remedy through the bathtub forward path 31 and the bathtub return path 32 by the flow action of the circulator circulation pump 33.

  Then, the hot water circulation pump 24 is operated with the terminal thermal valve 26 closed and the remedy thermal valve 29 opened, and the latent heat recovery heat exchanger N2 and the main heat exchanger N1 are operated. The heated hot water is circulated and supplied to the remedy heat exchanger 28 in a state of bypassing the heat consuming terminal U, and the remedy circulation pump 33 is operated to supply the hot water from the bathtub Y to the remedy heat exchanger 28. By circulating supply, the hot water of the bathtub Y is heated by the heat exchanger for remedy 28 to remedy the bathtub Y.

  In the bathtub return path 32, a water level sensor 34 as hot water level detecting means for detecting the water level in the bathtub Y by detecting pressure in order from the upstream side, the temperature of hot water taken out from the bathtub Y, that is, the bathtub Bathtub return temperature thermistor 35 as a hot water temperature detecting means for detecting the temperature of hot water of Y, an electromagnetic bath two-way valve 36 for opening and closing the bathtub return path 32, the recirculation circulation pump 33, and a water flow switch 37. The bathtub going-out path 31 is provided with a bathtub going-out temperature thermistor 38 for detecting the temperature of hot water supplied to the bathtub Y.

A hot water supply passage 41 for supplying hot water from the hot water supply passage 3 to the bathtub Y is branched from a location between the water proportional valve 19 and the interrupting water amount sensor 20 in the hot water supply passage 3. The bath return path 32 is connected to a place between the recirculation pump 33 for remedy and the water flow switch 37. The hot water filling path 41 is connected to the hot water filling path 41 in order from the upstream side. A valve 42 and a hot water check valve 43 are provided.
An air layer forming hopper 44 communicating with the hot water filling passage 41 is interposed between the hot water filling solenoid valve 42 and the hot water filling check valve 43 in the hot water filling passage 41. The air layer forming hopper 44 is provided with a drainage channel 45 for draining hot water and an electromagnetic drain valve 46 for opening and closing the drainage channel 45, and an end of the drainage channel 45 is located in the bathtub return channel 32. It is connected to a location between the bath two-way valve 36 and the memorial circulation pump 33.

  Furthermore, a bathtub water drain pipe 91 is provided so as to communicate with the vicinity of the end of the bathtub return path 32 on the bathtub Y side, and as a drain means for draining hot water of the bathtub Y to the bathtub water drain pipe 91. The bathtub water drain valve 92 is provided.

  When the hot water solenoid valve 42 is opened, the hot water supplied by the hot water supply heating section A and supplied through the hot water supply passage 41 passes through the bathtub return path 32 and the heat exchange for the remedy. The hot water flowing through both sides of the container 28 and supplied through the hot water filling passage 41 is supplied to the bathtub Y through both the bathtub outward passage 31 and the bathtub return passage 32.

  By configuring the heat source device G as described above, the heat source device G is configured so as to be able to perform a memory process for heating the hot water in the bathtub Y.

Next, a hot water pipe P for bath for supplying hot water adjusted in temperature from the heat source machine G to the bathtub Y and a piping structure for piping the drain drain pipe 4 will be described with reference to FIG.
The bathtub outgoing path 31 includes a bathtub outgoing pipe 31a provided in the casing 39 of the heat source machine G in a state connected to the chasing heat exchanger 28, and the circulation adapter 30 provided in the bathtub Y. The bathtub return pipe 32b is provided outside the casing 39 of the heat source machine G in a state where it is connected to the heat source machine G, and the bathtub return path 32 is connected to the remedy heat exchanger 28. It is comprised from the bathtub return inner pipe | tube 32a provided in the casing 39 of the heat source machine G, and the bathtub return outer pipe | tube 32b provided in the state outside the casing 39 of the said heat source machine G in the state connected to the said circulation adapter 30.
That is, the bathtub outward outer pipe 31b and the bathtub return outer pipe 32b correspond to the bathtub hot water pipe P.

  The bathtub outer pipe 31 b is connected to the bathtub inner pipe 31 a and the forward connection part 30 f of the circulation adapter 30.

A heat source machine side joint 60 provided at the end of the bathtub return outer pipe 32b on the heat source machine side in a state where the heat source machine side connection part 61 and the hot water pipe side connection part 62 for bathtub are communicated with each other through an internal passage (not shown). And provided in a state where the bathtub-side connecting portion 71 and the bathtub hot-water pipe-side connecting portion 72 are communicated with each other through an internal passage (not shown) at the bathtub-side end of the bathtub return outer tube 32b. A bathtub side joint 70 is provided.
A drain drain pipe insertion part 64 that communicates the internal passage to the outside is provided on a side wall part between the heat source machine side connection part 61 and the hot water pipe side connection part 62 for the bathtub in the heat source machine side joint 60, The drain drain pipe insertion portion 64 is provided with a sealing member 65 that seals in a watertight manner with the drain drain pipe 4 inserted.
A drain drain pipe insertion portion 74 that communicates the internal passage to the outside is provided on a side wall portion of the bathtub side joint 70 between the bathtub side connection portion 71 and the hot water pipe side connection portion 72 for the bathtub. The drainage pipe insertion portion 74 is provided with a sealing member 75 that seals in a watertight manner with the drain drainage pipe 4 inserted.
Further, a bathtub water drainage portion 79 communicating with the internal passage is provided at a location between the bathtub side connection portion 71 and the bathtub hot water pipe side connection portion 72 in the bathtub side joint 70, and the bathtub water drainage is provided. The bathtub water drain pipe 91 provided with the bathtub water drain valve 92 is connected to the portion 79.

And the said bathtub return inner pipe 32a is connected to the heat source machine side connection part 61 of the said heat source machine side coupling 60, and the heat source in the said bathtub return outer pipe 32b is connected to the hot water pipe side connection part 62 for the bathtub of the heat source machine side coupling 60. An end on the machine side is connected, a return connection part 30b of the circulation adapter 30 is connected to the bathtub side connection part 71 of the bathtub side joint 70, and a hot water pipe side connection part 72 for the bathtub of the bathtub side joint 70 is connected. The bathtub return end pipe 32 b is connected to the bathtub return end pipe 32 b, and the bathtub return outer pipe 32 b is connected to the bathtub return inner pipe 32 a and the return connection part 30 b of the circulation adapter 30.
Further, the drain drain pipe 4 has an end portion on the heat source unit side protruding outside from the drain drain pipe insertion portion 64 of the heat source unit side joint 60 and an end portion on the bathtub side is a drain drain unit of the bathtub side joint 70. It is provided so as to be located in the bathtub return outer pipe 32b in a state of protruding outward from the pipe insertion portion 74.

Hereinafter, the control operation of the operation control unit C will be described.
The operation controller C is configured to be able to communicate with the main remote controller R1 and the bathroom remote controller R2.
As shown in FIG. 1, the main remote controller R1 and the bathroom remote controller R2 (only the main remote controller R1 is shown) have an operation switch 81 for instructing start and stop of operation, an automatic bath switch 82 for instructing automatic bath operation, Hot water supply temperature setting switch 83 for setting the general hot water supply temperature, bathtub temperature setting switch 84 for setting the target temperature of hot water in bathtub Y, water level setting switch 85 for setting the target water level in bathtub Y, hot water added to the bathtub Additional hot water switch 86 for supplying hot water, a memorial switch 87 for instructing memorial operation, a half body bath switch 89 for instructing hot water for bathing in the bathtub Y, and a display unit 88 for displaying various information such as set temperature. An informing device 90 such as a speaker for informing the completion of the hot water filling is provided. That is, the bath temperature setting switch 84 and the water level setting switch 85 constitute target water filling state setting means for setting a target water level for filling the bathtub Y and a target temperature for hot water filling the bathtub Y.
In the following description, the target temperature of hot water set by the bathtub temperature setting switch 84 is described as a normal target temperature, and the target water level set by the water level setting switch 85 is set as a normal target. Sometimes described as water level.

  The operation control unit C includes a half body bathing target water level set to a lower water level than a normal bathing hot water level (for example, a height of 30 cm from the bottom of the bathtub Y), and a normal bathing hot water. The target temperature for half body bath set to a temperature lower than the temperature (for example, 38 ° C.) is stored in advance.

  The operation control unit C is in a controllable state when the operation switch 81 is operated, and performs a general hot water supply operation in which hot water is supplied from the hot water tap 2 when the hot water tap 2 is opened. Further, when the bath automatic switch 82 is turned on, the operation control unit C fills the hot water so that the temperature of the hot water in the bathtub Y becomes the normal target temperature and the level of the hot water in the bathtub Y becomes the normal target water level. The temperature of the hot water in the bathtub Y is normal for every set time (for example, 10 minutes) from when the bath automatic switch 82 is turned on until it is turned off. The hot water filling operation for keeping is performed so as to maintain the hot water filling state where the hot water level in the bathtub Y reaches the target temperature and the normal water level is reached, and when the additional water switch 86 is operated, the additional hot water operation is performed. When the memorial switch 87 is operated, the memorial operation is executed, and when the half-body bath switch 89 is turned on, the temperature of the hot water in the bathtub Y becomes the target temperature for half-body bathing and the water level of the hot water in the bathtub Y is half-body Hot water filling to reach the target water level for bathing That performs a half body bath water filling operation, Drain capacity of the upper limit sensor 8s by drain tank 8 when not less than the upper limit accumulation amount is detected, is configured to perform a drain water discharging operation.

That is, the bath automatic switch 82 and the half-body bath switch 89 function as a hot water instructing means for instructing the start of hot water filling.
When the half bath switch 89 is turned on, the target water level for half bathing is set as the target water level for filling the bathtub Y, and the target temperature for half bathing is set as the target temperature for filling the bathtub Y. Therefore, the half-body bath switch 89 also functions as a target hot water state setting means for setting a target water level for filling the bathtub Y and a target temperature for hot water filling the bathtub Y.

When the water level of the hot water in the bathtub Y is equal to or higher than the water level corresponding to the installation height of the hot water inlet in the return connection portion 30b of the circulation adapter 30 (hereinafter sometimes referred to as the circulation adapter inlet water level), When the memory circulation pump 33 is operated, the hot water of the bathtub Y flows through the bathtub return path 32 and the bathtub return path 31, the water flow switch 37 is turned on, and the water level of the hot water of the bathtub Y is the level of the circulation adapter inlet port. If it is lower than that, since the hot water of the bathtub Y does not flow through the bathtub return path 32 even if the circulation pump 33 for remedy is operated, the water flow switch 37 is turned off. When the water flow switch 37 is turned off from on and when the water flow switch 37 is turned on from off, the water level of the hot water in the bathtub Y is circulated and adjusted. It will be a suction port level.
In other words, the water flow switch 37 can detect whether the hot water level in the bathtub Y is higher than the circulation adapter inlet water level, the circulation adapter inlet water level, or the circulation adapter inlet water level. 37 is also configured to function as hot water level detection means.
Incidentally, the water level sensor 34 can detect the water level when the water level of the hot water in the bathtub Y is equal to or higher than the circulating adapter inlet water level, and when the water level of the bathtub Y is lower than the circulating adapter inlet water level. The water level cannot be detected.

  Hereinafter, each operation of the general hot water supply operation, the normal hot water filling operation, the keep hot water filling operation, the additional hot water operation, the memorial operation, the half body hot water filling operation, and the drain drainage operation will be described. Add.

  In the general hot water supply operation, when the hot water tap 2 is opened and the amount of water detected by the water amount sensor 14 exceeds a predetermined amount, the combustion fan 12 in the hot water supply heating section A is driven, and then the intermittent valve 11 is opened to igniter. The burner g1 is ignited, and the detected temperature of the hot water supply thermistor 18 is determined based on the temperature set by the hot water supply temperature setting switch 83, the detected water amount of the water amount sensor 14, the detected water temperature of the hot water thermistor 13, the detected temperature of the hot water thermistor 18, etc. The opening degree of the gas proportional valve 10 and the opening degree of the mixing valve 17 are adjusted so that the temperature is set by the hot water supply temperature setting switch 83. When water flow is no longer detected by the water amount sensor 14, the intermittent valve 11 is closed to stop the combustion of the burner g1, and the combustion fan 12 is also stopped to end the general hot water supply operation.

In the normal hot water filling operation, the keep hot water filling operation, and the additional hot water operation, the water from the water supply channel 1 is heated to the normal target temperature by the heat source unit G and supplied to the bathtub Y. In the hot water filling operation for half-body bathing, the bath water drain valve 92 is opened to drain the hot water from the bathtub Y, and water from the water supply channel 1 is drained by the heat source G. Water pouring treatment for supplying to the bathtub Y without being heated by the burner g1, or pouring treatment for half body bathing for supplying water from the water supply channel 1 to the target temperature for half bathing by the heat source machine G and supplying it to the bathtub Y Will do.
And since the drainage of the hot water of the bathtub Y and the supply of the hot water to the bathtub Y are performed using the return path 32 for bathtubs provided with the water level sensor 34, the bathtub return temperature thermistor 35, and the water flow switch 37, waste water treatment, In each of the water pouring process and the pouring process, the water level sensor 34 detects the hot water level of the bathtub Y, the bath return temperature thermistor 35 detects the hot water temperature of the bathtub Y, or the water flow switch. 37, it cannot be executed while detecting the hot water level of the bathtub Y.
Therefore, the operation control unit C executes the determination process as described below, while reading the detection information of the water flow switch 37, the bathtub return temperature thermistor 35, and the water level sensor 34, the drainage process, the water injection process, and Each of the pouring treatments for normal and half body bathing is performed intermittently.

  That is, in the determination process, the operation control unit C operates the remedy circulation pump 33 with the bathtub water drain valve 92 closed during the circulation determination set time, and the remedy circulation pump During the operation of 33, the detection information of the water flow switch 37 and the bath return temperature thermistor 35 is read, and after the standby circulation pump 33 is stopped, when the set time for standby elapses, the detection of the water level sensor 34 is detected. It is configured to read information. By the way, the set time for the circulation determination is set to, for example, a time required to make one round of the hot water of the bathtub Y through the bathtub outgoing path 31 and the bathtub return path 32, or the waiting set time is The time required for the hot water to stop flowing in the bathtub forward path 31 and the bathtub return path 32 after the circulator circulation pump 33 is stopped is set.

And in the said waste_water | drain process, the operation control part C opens the bathtub water drain valve 92, and when the set time for drainage passes, it is comprised so that the bathtub water drain valve 92 may be closed. Incidentally, the set time for drainage is set to, for example, the time required to reduce the water level of the bathtub Y by about 1 cm.
The operation control unit C is configured to open the hot water solenoid valve 42 without burning the burner g1 in the water injection process, and close the hot water solenoid valve 42 when the set time for water injection has elapsed. Yes. In this water injection process, the water from the water supply channel 1 is supplied to the bathtub Y through both the bathtub outward channel 31 and the bathtub return channel 32 without being heated.
In the normal pouring process, the operation control unit C opens the hot water solenoid valve 42 and ignites the burner g1 in the same manner as in the general hot water supply operation described above. Based on the detected water amount, the detected water temperature of the water supply thermistor 13, the detected temperature of the hot water thermistor 18, and the like, the opening of the gas proportional valve 10 and the mixing valve 17 so that the detected temperature of the hot water thermistor 18 becomes the normal target temperature. When the set time for pouring is adjusted, the hot water solenoid valve 42 is closed and the combustion of the burner g1 is stopped as in the above-described general hot water supply operation.
In addition, in the pouring process for half-body bathing, the operation control unit C opens the hot water solenoid valve 42 and ignites the burner g1 in the same manner as the above-described general hot water supply operation. 14 based on the detected water amount, the detected water temperature of the water supply thermistor 13, the detected temperature of the hot water thermistor 18 and the like, so that the detected temperature of the hot water thermistor 18 becomes the target temperature for half bathing and the mixing. When the opening of the valve 17 is adjusted and the set time for pouring elapses, the hot water solenoid valve 42 is closed and the combustion of the burner g1 is stopped as in the above-described general hot water supply operation. .
Incidentally, the set time for pouring water and the set time for pouring water are set to, for example, the time required to raise the water level of the bathtub Y by about 1 cm.

  Further, the operation control unit C executes the determination process before executing the normal hot water filling operation, the keep hot water filling operation, the additional hot water operation, the memorial operation, and the half bathing hot water operation. Then, the hot water level of the bathtub Y is determined based on the on / off information of the water flow switch 37 or the detected water level of the water level sensor 34, and the hot water temperature of the bathtub Y is determined based on the detected temperature of the bathtub return temperature thermistor 35. It is configured as follows.

When the bath automatic switch 82 is turned on, the operation control unit C executes a normal hot water filling operation when the hot water level in the bathtub Y determined in the determination process is lower than the normal target water level. Is configured to do.
In the normal hot water filling operation, the process of sequentially executing the normal pouring process and the determination process is repeated until the detected water level of the water level sensor 34 is equal to or higher than the normal target water level, and the detected water level of the water level sensor 34 is normal. When the target water level is exceeded, the normal hot water filling operation is terminated.
When the detected temperature of the bathtub return temperature thermistor 35 is lower than the normal target temperature when the normal hot water filling operation is completed, the operation control unit C The memorial process is executed until the detected temperature becomes equal to or higher than the normal target temperature. In the memory processing, the hot water circulation pump 24 and the memory circulation pump 33 are operated in a state where the terminal thermal valve 26 is closed and the memory thermal valve 29 is opened, and the inside of the bathtub Y is operated. After the hot water is circulated through the bathtub return path 32 and the bathtub forward path 31, the combustion fan 12 in the heating part B for hot water circulation is driven, the intermittent valve 11 is opened, and the burner g2 is ignited by the igniter, The opening degree of the gas proportional valve 10 is adjusted so that the detected temperature of the bath temperature thermistor 38 becomes the set hot water temperature for remedy (for example, 60 ° C.), and the detected temperature of the bath return temperature thermistor 35 is the normal target. When the temperature becomes higher than the temperature, the intermittent valve 11 is closed to stop the combustion of the burner g2, and the combustion fan 12 is stopped to end the tracking process.

  If the detected temperature of the bathtub return temperature thermistor 35 is equal to or higher than the normal target temperature when the normal hot water filling operation is finished, the operation control unit C notifies when the normal hot water filling operation is finished. When the device 90 is operated to notify the end of the hot water filling, and when the normal hot water filling operation is finished, the detection temperature of the bathtub return temperature thermistor 35 is lower than the normal target temperature and the memorial process is executed. Is configured to operate the notification device 90 to notify the end of hot water filling when the chasing process is completed.

While the bath automatic switch 82 is in the ON state, the operation control unit C determines the temperature of the hot water in the bathtub Y and the water level of the hot water in the bathtub Y each time the set time elapses. Based on the normal target temperature set by the bathtub temperature setting switch 84 and the normal target water level set by the water level setting switch, the hot water filling operation for keep is performed as follows.
That is, when the water level of the hot water in the bathtub Y is lower than the normal target water level, the water level sensor 34 performs the process of sequentially executing the normal pouring process and the determination process regardless of the temperature of the hot water in the bathtub Y. Repeat until the detected water level is equal to or higher than the normal target water level, and when the detected temperature of the bathtub return temperature thermistor 35 when the detected water level is equal to or higher than the normal target water level is lower than the normal target temperature, the bath return temperature The memorial process is executed until the detected temperature of the thermistor 35 becomes equal to or higher than the normal target temperature, the hot water level in the bathtub Y is higher than the normal target water level, and the hot water temperature in the bathtub Y is higher than the normal target temperature. When the temperature is low, the memorial process is executed until the detected temperature of the bathtub return temperature thermistor 35 is equal to or higher than the normal target temperature, and the hot water level of the bathtub Y is equal to or higher than the normal target water level and the hot water temperature of the bathtub Y. When is higher than the normal target temperature It waits for heat source apparatus G without operating.

When the addition hot water switch 86 is operated, the operation control unit C executes the determination process. When the determination process determines that the hot water level in the bathtub Y is lower than the normal target water level, the operation control unit C performs the addition hot water operation. In the addition hot water operation, the normal pouring process and the determination process are sequentially performed until the detected water level of the water level sensor 34 is equal to or higher than the normal target water level.
The operation control unit C executes the determination process when the remedy switch 87 is operated, and executes the remedy operation when it is determined in the determination process that the temperature of the hot water in the bathtub Y is lower than the normal target temperature. In the chasing operation, the chasing process is executed until the detected temperature of the bathtub return temperature thermistor 35 becomes equal to or higher than the normal target temperature.
In the drain drain operation, the operation control unit C operates the drain drain pump 9 for a set time for drain drain. When this drain drain operation is executed, the drain in the drain tank 8 is led to the drain port D of the bathroom through the drain drain pipe 4 and discharged from the drain port D. Incidentally, the set time for drainage is set, for example, to a time during which the drain of about 90% of the upper limit storage amount in the drain tank 8 can be discharged.

When the half body bath switch 89 is turned on, the operation control unit C determines the temperature Tm of the hot water in the bathtub Y, the water level Lm of the hot water in the bathtub Y, and the stored target temperature for half body bathing. Based on Tw and the half-bath target water level Lw, as shown in FIG. 2, the half-body bathing operation in each of the modes A to H is executed.
Hereinafter, the hot water filling operation for half-body bathing in each of the modes A to H will be described.

When the hot water level Lm of the bathtub Y is higher than the half body bath target water level Lw and the hot water temperature Tm of the bathtub Y is higher than the half bath target temperature Tw, the half bath bathing operation in the A mode is executed.
In the hot water filling operation for half-body bathing in the A mode, the water level of the bathtub Y is changed to the circulation adapter inlet water level by repeating the process of sequentially executing the drainage process and the determination process until the water flow switch 37 is turned off. The hot water in the bathtub Y is drained so that the water injection process and the determination process are sequentially performed until the temperature detected by the bathtub return temperature thermistor 35 is equal to or lower than the half bath target temperature Tw. Then, the water from the water supply channel 1 is supplied to the bathtub Y without heating so that the temperature of the hot water in the bathtub Y becomes the half body bath target temperature Tw, and then the hot water pouring process and the determination process for the half body bath are sequentially performed. Repeat the process to be performed until the water level detected by the water level sensor 34 is equal to or higher than the target water level Lw for half-body bathing, so that the water level in the bathtub Y becomes the target water level Lw for half-body bathing. The hot water temperature Tw is supplied to the bathtub Y, the detection level of the level sensor 34 becomes equal to or greater than half the body bathing target water level Lw, and terminates the half body bath hot water filling operation in the A mode.

  When the water level Lm of the hot water in the bathtub Y is the half body bath target water level Lw and the temperature Tm of the hot water in the bathtub Y is higher than the target temperature Tw for half body bathing, the bathing operation for half body bathing in the A mode is executed.

When the water level Lm of the hot water in the bathtub Y is equal to or higher than the circulation adapter inlet water level La and lower than the target water level Lw for half bathing and the temperature Tm of the hot water in the bathtub Y is higher than the target temperature Tw for half bathing, in the B mode Execute half-bath bathing.
In the hot water filling operation for half body bathing in the B mode, the process of sequentially performing the water pouring process and the determination process is repeated until the temperature detected by the bathtub return temperature thermistor 35 is equal to or lower than the half body bathing target temperature Tw. The following control is executed in accordance with the hot water level Lm of the bathtub Y when the temperature detected by the return temperature thermistor 35 becomes equal to or lower than the half bath target temperature Tw.
That is, when the water level Lm of the hot water in the bathtub Y is lower than the target water level Lw for half-body bathing, the detected water level of the water level sensor 34 is the target water level Lw for half-body bathing in which the hot water pouring process for half body bathing and the determination process are sequentially executed. When the detected water level of the water level sensor 34 is equal to or higher than the half body bathing target water level Lw, the hot water bathing operation for the half body bathing in the B mode is terminated and the hot water level Lm in the bathtub Y is the half body bathing target water level Lw. Ends the half-bath bathing operation in the B mode as it is, and when the hot water level Lm of the bathtub Y is higher than the target water level Lw for half-body bathing, the water level sensor performs the process of sequentially executing the drainage process and the determination process. Repeated until the detected water level of 34 falls below the target water level Lw for half-body bathing, and when the detected water level of the water level sensor 34 falls below the target water level Lw for half-body bathing, bathing operation for half-body bathing in B mode is performed To completion.

When the water level Lm of the hot water in the bathtub Y is higher than the target water level Lw for half bathing and the temperature Tm of the hot water in the bathtub Y is the target temperature Tw for half bathing, the hot water filling operation for half bathing in the C mode is executed.
In the half bathing operation in the C mode, the process of sequentially executing the drainage process and the determination process is repeated until the water level detected by the water level sensor 34 is equal to or lower than the target water level Lw for half body bathing, and the water level detected by the water level sensor 34 is When the water level is equal to or lower than the half body bathing target water level Lw, the half body bathing operation in the C mode is terminated.

  When the water level Lm of the hot water in the bathtub Y is the target water level Lw for half body bathing and the temperature Tm of the hot water in the bathtub Y is the target temperature Tw for half body bathing, the heat source machine G is not operated and the bathtub water drain valve 92 is closed. Maintain state and wait.

When the water level Lm of the hot water in the bathtub Y is equal to or higher than the circulation adapter inlet water level La and lower than the target water level Lw for half bathing, and the temperature Tm of the hot water in the bathtub Y is the target temperature Tw for half bathing, for half bathing in the D mode Perform hot water operation.
In the hot water filling operation for half body bathing in the D mode, the process of sequentially performing the pouring process for half body bathing and the determination process is repeated until the water level detected by the water level sensor 34 becomes equal to or higher than the target water level for half body bathing Lw. When the detected water level 34 is equal to or higher than the half-body bathing target water level Lw, the half-body bathing operation in the D mode is terminated.

When the water level Lm of the hot water in the bathtub Y is higher than the target water level Lw for half-body bathing and the temperature Tm of the hot water in the bathtub Y is lower than the target temperature Tw for half-body bathing, the bathing operation for half-body bathing in the E mode is executed.
In the hot water filling operation for half bathing in the E mode, the process of sequentially executing the drainage process and the determination process is repeated until the detected water level of the water level sensor 34 is equal to or lower than the half body bathing target water level Lw. -A memorial process is performed until the detected temperature of the mister 35 becomes equal to or higher than the half body bath target temperature Tw, and when the detected temperature of the bathtub return temperature thermistor 35 becomes equal to or higher than the half body bath target temperature Tw, The hot water filling operation is terminated.

When the hot water level Lm in the bathtub Y is the half bath target water level Lw and the hot water temperature Tm in the bathtub Y is lower than the half bath target temperature Tw, the half bathing operation in the F mode is executed.
In the hot bathing operation for half-body bathing in the F mode, a memorial process is executed until the detected temperature of the bathtub return temperature thermistor 35 becomes equal to or higher than the half-body bath target temperature Tw, and the detected temperature of the bathtub return temperature thermistor 35 is detected. When the temperature becomes equal to or higher than the half body bathing target temperature Tw, the half body bathing operation in the F mode is terminated.

When the water level Lm of the hot water in the bathtub Y is equal to or higher than the circulation adapter inlet water level La and lower than the target water level Lw for half body bath and the temperature Tm of the hot water in the bathtub Y is lower than the target temperature Tw for half body bath, Execute half-bath bathing.
In the hot water filling operation for half body bathing in the G mode, the process of sequentially performing the pouring process for the half body bathing and the determination process is repeated until the detected water level of the water level sensor 34 becomes equal to or higher than the target water level Lw for half body bathing, When the detection temperature of the bathtub return temperature thermistor 35 is equal to or higher than the half body bath target temperature Tw, the memorial process is executed. End hot water bathing for half bathing in mode.

When the water level Lm of the hot water in the bathtub Y is lower than the circulation adapter inlet water level La, the hot water filling operation for half-body bathing in the H mode is executed.
In the hot water filling operation for half body bathing in the H mode, the water level of the bathtub Y is circulated by repeating the process of sequentially performing the pouring process for the half body bathing and the determination process until the water flow switch 37 is turned on. When hot water at the target temperature Tw for half-body bathing is supplied to the bathtub Y until the adapter suction port water level La is reached and the water flow switch 37 is turned on, thereafter, depending on the detected temperature of the bathtub return temperature thermistor 35 at that time, When the detected temperature is higher than the target temperature Tw for half-body bathing, the hot water filling operation for half-body bathing is executed in the B mode, and when the detected temperature is the target temperature Tw for half-body bathing, hot water for half body bathing is used in the D mode. If the detected temperature is lower than the target temperature Tw for half bathing, the filling operation for half bathing in the G mode is executed, and the filling operation for half bathing in the H mode is completed. That.

And the operation control part C is the H mode which performs the hot water filling operation for half body bathing in B mode or D mode when the hot water filling operation for half body bathing in each mode of AD is completed as mentioned above. If the temperature of the hot water in the bathtub Y is lower than the target temperature Tw for half-body bathing when the bathing operation for half-body bathing is completed, until the detected temperature of the bathtub return temperature thermistor 35 becomes equal to or higher than the target temperature Tw for half-body bathing It is configured to execute a memorial process.
In addition, when the half bathing operation for the half body bathing is performed when the half bathing switch 89 is turned on, the operation control unit C performs the memorial after the half bathing operation for half bathing is performed. When the process is not executed, the hot water filling operation for half-body bathing is completed, or when the memorial process is executed, the alarm device 90 is operated to terminate the hot water filling when the memorial process is finished. It is comprised so that it may alert | report.

That is, the hot water filling operation for half-body bathing in the A mode operates the bathtub water drain valve 92 to drain hot water so that the water level of the bathtub Y becomes the set drainage water level set to the circulation adapter inlet water level. After that, when the water level of the hot water in the bathtub Y reaches the target water level (that is, the target water level for half body bathing), the temperature of the hot water so that the temperature of the hot water in the bathtub Y becomes the target temperature (that is, the target temperature for half body bathing) In the state of adjusting the water temperature, the drainage-added water filling operation that operates the heat source machine G to supply hot water to the bathtub Y so that the hot water level of the bathtub Y becomes the target water level (that is, the target water level for half-body bathing). Equivalent to.
When the operation control unit C is instructed to start filling by operating the half body bath switch 89, the water level sensor 34 detects more hot water than the water level for drainage determination (that is, the target water level for half body bathing). When the temperature of the hot water detected by the bathtub return temperature thermistor 35 is higher than the target temperature (that is, the half body bath target temperature), the drainage-added hot water filling operation is executed. Yes.

  That is, in the first embodiment, the set drainage water level is set to the circulation adapter suction port water level, and the drainage discrimination water level is set to the half body bath target water level.

In addition, the operation control unit C detects the temperature of the hot water detected by the bathtub return temperature thermistor 35 for the unheated unheated water in the draining hot water filling operation. Temperature) until the water level in the bathtub Y reaches the target water level (that is, the target water level for half bathing). The machine G is configured to operate.
In addition, after the operation control unit C performs the drainage-added hot water filling operation, the temperature of the hot water detected by the bathtub return temperature thermistor 35 is the target temperature (that is, the half bathing target temperature). When the temperature is lower than the above, the heat source device G is operated so as to perform the memorial process so as to heat the hot water in the bathtub Y to the target temperature (that is, the target temperature for half body bathing).

  Since the bath facilities are configured as described above, if you want to take a bath in half bath when you are already bathed in the normal bathing condition, you can add drainage by turning on the half bath switch 89. The hot water filling operation of the type, that is, the hot water filling operation for half-body bathing in the A mode, is performed, and the hot water filling state of the bathtub Y is higher than the normal hot water filling state for bathing. Is automatically adjusted to a hot water filled state for half-body bathing with a low water level and a low water level.

[Another embodiment]
Next, another embodiment will be described.
In implementation form of (i) above has been illustrated for the case of setting the s half of the body bath target level and body half bath target temperature each at a constant value, changes the s half body bath target level and body half bath target temperature respectively manually operated A means for setting may be provided so that the user can change and set the target water level for half body bath and the target temperature for half body bath.

In the first implementation form of (ii) above, to configure the operation control unit C, and when commanded to start hot water filling at sitz bath switch 89, hot water in the water level of the bathtub Y is from half body bath target level When the temperature of the hot water in the bathtub Y is higher than the target temperature for half-body bathing, the hot water filling operation of the drainage addition type is executed. However, when the water level of the hot water in the bathtub Y is higher than the target water level set by the water level setting switch 85 and the temperature of the hot water in the bathtub Y is higher than the target temperature set by the bathtub temperature setting switch 84, drainage is added. You may comprise so that a hot-watering operation of a type may be performed .

(C) In the first implementation mode described above, by omitting the sitz bath switch 89, to configure the operation control unit C, and when commanded to start hot water filling at the bath automatic switch 82, hot water of the bathtub Y When the water level is higher than the target water level set by the water level setting switch 85 and the temperature of the hot water in the bathtub Y is higher than the target temperature set by the bathtub temperature setting switch 84, the drainage type hot water filling operation is performed. It may be configured to execute .

(D) In the first implementation mode described above, the temperature of hot water supplied to the tub Y until water flow switch 37 is turned on at the half-body bath hot water filling operation H mode and M mode, illustrated in the embodiments described above It is not limited to the target temperature for half body bathing, for example, it can set to the minimum temperature of the supply temperature adjustment range of the hot water in the heat source machine G.

( E ) The specific configuration of the heat source machine G as the bath hot water treatment unit is not limited to the configuration illustrated in the above embodiment.
For example, in the above embodiment, the case where the heating part A for hot water supply and the heating part B for hot water circulation are configured to include a latent heat recovery heat exchanger N2 in addition to the main heat exchanger N1, is exemplified. The heat exchanger N2 may be omitted. In this case, since the drain drain pipe 4 is omitted, the bathtub return outer pipe 32b is connected to the heat source machine G and the circulation adapter 30 with the same structure as the bathtub outlet outer pipe 31b, so that the electromagnetic bathtub The bathtub water drain pipe 91 provided with the water drain valve 92 is directly connected to the bathtub return outer pipe 32b.

Further, in the implementation form described above, the heat source apparatus G, has been illustrated for the case of constituting the structure and the bathtub Y heating the hot water circulation supplied to the heat consumer terminal T to include both configurations of the arrangement for additional heating Or you may comprise so that only the structure which tracks the hot water of the bathtub Y may be provided.
In this case, the bathtub return path 32 is connected to the return connection part 30b of the circulation adapter 30 and the latent heat recovery heat exchanger N2 of the warm water circulation heating part B, and the bathtub return path 31 is connected to the warm water circulation heating part B. The hot water filling path 41 is connected to the bathtub return path 32 in the same manner as in the above embodiment, and is connected to the main heat exchanger N1 and the outgoing connection part 30f of the circulation adapter 30.

Further, in constituting the heat source apparatus G, illustrated such add-fired process in the implementation form described above, i.e., in place of the add-fired process for heating the hot water of the bathtub Y, hot add than the temperature for ordinary bathing You may comprise so that the chasing process which supplies hot water of 焚 setting temperature to the bathtub Y and carries out chasing can be performed.

Block diagram showing the overall configuration of the bath equipment It shows the condition for selecting the mode of half body bath water filling operation according to the first implementation embodiment

Explanation of symbols

34 Hot water level detection means 35 Hot water temperature detection means 37 Hot water level detection means 82 Hot water filling command means 84, 85 Target hot water filling state setting means 89 Target hot water filling state setting means, hot water filling command means 92 Drainage means C Operation control means G Bath Hot water treatment section Y bathtub

Claims (2)

A hot and cold water treatment section for performing hot water supply processing for supplying hot and cold water to the bathtub;
A target hot water state setting means for setting a target water level for filling the bathtub and a target temperature for hot water filling the bathtub;
A hot water filling command means for instructing the start of hot water filling,
As the hot water start command is instructed by the hot water filling command means, the hot water treatment section for bath is operated based on the target water level and the target temperature set by the target hot water filling state setting means. Bath equipment provided with operation control means for performing hot water filling operation,
Drainage means for draining hot water in the bathtub, hot water temperature detection means for detecting the temperature of hot water in the bathtub, and hot water level detection means for detecting the hot water level in the bathtub are provided,
When the operation control means is instructed to start filling by the hot water filling instruction means, the hot water level detecting means detects hot water more than the water level for drainage determination and the hot water temperature detecting means detects it. When the temperature of the hot water to be performed is higher than the target temperature, the drain means is operated to drain the hot water so that the water level of the bathtub reaches the set drainage water level, and then the water level of the bathtub Supplying hot water to the bathtub so that the hot water level of the bathtub becomes the target water level while adjusting the hot water temperature so that the hot water temperature of the bathtub becomes the target temperature when the target water level is reached It is configured to perform drainage addition type hot water operation for operating the hot water treatment section for bath ,
The hot water treatment unit for bath is configured to supply hot water through a circulation adapter equipped on the lower side of the side wall of the bathtub,
The drainage means is configured to discharge hot water through the circulation adapter;
The drainage discrimination water level is the target water level, and the set drainage water level is a water level corresponding to the installation height of the circulation adapter,
When the operation control means is in the draining hot water filling operation, the hot water level detection means detects hot water higher than the target water level, and the hot water temperature detected by the hot water temperature detection means is the target temperature. When the temperature is higher than the temperature, the drain means is operated to drain the hot water so that the level of the hot water in the bathtub becomes the set drainage water level, and then the unheated water that has not been heated is moved by the hot water temperature detecting means. After supplying the hot water to the bathtub until the temperature of the detected hot water reaches the target temperature, the hot water treatment section for bath is supplied to supply the hot water of the target temperature to the bathtub until the water level of the bathtub reaches the target water level. Bath facilities that are configured to operate . The hot water treatment section for bath is configured to perform a memorial process for heating hot water in the bathtub,
After the operation control means performs the draining type hot water filling operation, when the temperature of the hot water detected by the hot water temperature detection means is lower than the target temperature, the hot water in the bathtub is changed to the target temperature. The bath facility according to claim 1, wherein the bath hot water treatment section is operated so as to perform the memorial process so as to be heated.

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