JPH0376938A - Bath system - Google Patents

Abstract

PURPOSE:To to allow water to reach a set temperature in a bathtub just when the volume of water filled in the bathtub reaches a set point by discharging automatically displacement obtained on the basis of detection information in a state of water storage for the bathtub and the temperature of hot-water supply or water supply from the bathtub by a controlling means. CONSTITUTION:When the volume of water in a bathtub reaches the set volume of water filled in the bathtub, after displacement obtained on the basis of detection information in a state of water storage for the bathtub and hot-water supply or water supply is discharged automatically from the bathtub 1 by a controlling means in order that the temperature of water in the bathtub reaches the set temperature of water filled in the bathtub, hot-water or water is supplied to the bathtub 1, and the temperature of water in the bathtub reaches the set point just when the volume of water in the bathtub reaches the set point by hot-water supply or water supply. The water discharged from the bathtub 1 is effectively utilized by a bathtub water utilization device to be attached. According to the constitution, trouble and inconvenience caused by a water- filling operation can be resolved.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a bus system.

[Conventional technology]

Regarding the bath system, in order to ensure that the bathtub water temperature reaches the set hot water filling temperature when the bath water volume reaches the set hot water filling water level (set hot water filling water level) when hot water is supplied to the bathtub with bath water present. , previously proposed a system that automatically drains an appropriate amount of water from the bathtub (Japanese Patent Application Laid-Open No. 1983-1999).
(See No. 70043).

[Problem to be solved by the invention]

However, if the drained water is simply disposed of in the above-mentioned automatic draining of bathtub water, there is a problem in that it will result in a large waste of money, and if a tank is installed to store the drained water for reuse. However, if only such a storage tank is installed, the user will have trouble deciding how to use the stored wastewater, and there is a strong possibility that the wastewater will not be used effectively in actual use of the equipment. However, there is still room for improvement in practical terms.

An object of the present invention is to automatically discharge an appropriate amount of bath water in advance, thereby making it possible to obtain high convenience in filling the bathtub even when there is water in the bathtub. The aim is to provide a bus system that can be used effectively.

[Means to solve the problem]

The characteristic configuration of the bath system according to the present invention is such that when hot water is supplied to a bathtub with water present, the bathtub water temperature reaches the set hot water filling temperature when the bath water amount reaches the set hot water filling amount. A control means is provided for determining in advance the amount of drainage water to be discharged from the bathtub based on the detection information of the bathtub water storage state and the hot water supply or the temperature of the water supply, and automatically discharging the determined drainage amount from the bathtub. ,on the other hand,
There is provided a bathtub water utilization device that utilizes and consumes water discharged from the bathtub by the control means, and its operation and operation are as follows.
The effects are as follows.

[For production]

In other words, when hot water or water is supplied to the bathtub after the above-mentioned control means automatically discharges the drainage amount determined based on the detection information of the bathtub water storage state and the temperature of the hot water supply or water supply, the hot water supply or water supply is performed. As a result, the bathtub water temperature at the set hot water filling temperature will be obtained exactly when the bath water amount reaches the set hot water filling amount.

On the other hand, the water discharged from the bathtub by automatic bathtub water discharge by the above-mentioned control means is effectively used and consumed by an attached bathtub water utilization device.

〔Effect of the invention〕

That is, according to the present invention, when hot water is supplied or supplied to a bathtub with bathtub water present, the bathtub water temperature remains at the set hot water filling temperature even though the bath water volume has exactly reached the set hot water filling water volume. In some cases, the bathtub water temperature has dropped significantly from the set filling temperature, or conversely, even though the bathtub water temperature has reached the set hot water filling temperature, the bathtub water volume has fallen significantly from the set hot water filling temperature. This eliminates the inconvenience and inconvenience of performing hot water filling operations when there is water in the bathtub.

In addition, while the automatic draining of bath water provides high convenience in hot water filling operations as described above, the automatic draining of bath water also ensures effective use of the drained water with the attached bath water utilization device. This can be economically advantageous, and overall, it is highly convenient to perform hot water filling operations when there is water in the bathtub, and to achieve this, effective use of the bathtub drain water is achieved. This combined with the ability to reliably achieve this, makes it possible to create an excellent bus system that is practically complete.

In addition, in the above-mentioned configuration of the present invention, the control means automatically starts hot water supply or water supply to the bathtub after executing the automatic draining of bathtub water, and thereafter, when the bathtub water amount reaches the set hot water filling amount, the control means automatically starts the hot water supply or water supply to the bathtub. If hot water supply or water supply to the bathtub is automatically stopped (corresponding to claim 2), it is possible to obtain a hot water filling state at a set water amount and a set hot water temperature from a state where there is bath water in the bathtub. The hot water filling operation can be performed fully automatically, and the convenience of hot water filling operation from a state where bath water is present in the bathtub can be further improved.

〔Example〕

Next, an example will be described.

Figure 1 shows the overall configuration of the bath system, where (1) is the bathtub, and (2) is the bath water supply and hot water tap (3) for the bathtub (1).
(4) is a purification unit that purifies bath water, (5) is a controller that controls operation, and (6) is a remote that gives operation commands to controller (5). It is a controller.

In the heat source unit (2), (7) is a heat exchanger for heating water, and (8) is a burner that heats the flowing water in the heat exchanger (7).

The hot water supply path (9) from the heat exchanger (7) is branched into a first hot water path (9a) for general hot water supply and a second hot water path (9b) for bath hot water supply. On the upstream side, the hot water supply path (9) is equipped with a first temperature sensor (10) and a water flow adjustment valve (11), and the first hot water path (9a) after branching is equipped with a check valve (12). On the other hand, the second hot water channel (9b
) is equipped with a bath water supply on/off valve (I3) and a vacuum breaker (I4) to prevent backflow of bath water.

Further, a water flow sensor (16) and a second temperature sensor (17) are attached to the water supply channel (15) to the heat exchanger (7).

(18) is a bypass path that short-circuits and supplies water branched from the water supply channel (15) to the first hot water channel (9a) on the downstream side of the check valve (I2), and this bypass channel (18)
) has a water flow switch (19) that turns on when it senses the water flow.
, and a bypass solenoid valve (20).

The hot water supply operation control by the controller (5) is as follows: - In the case of general hot water supply, the water flow sensor (1) is activated when the hot water tap (3) is opened.
By igniting the burner (8) in response to detecting the amount of water flowing through the bath water tap (6), general hot water is supplied to the hot water tap (3).
13) At the same time as opening the valve, this bath water supply intermittent valve (
Bath hot water is supplied to the bathtub (1) by igniting the burner (8) in response to the water flow sensor (16) detecting the amount of water flowing when the valve 13) is opened.

In both cases of general hot water supply and bath hot water supply, the water flow regulating valve ( 11) and the fuel supply amount adjusting valve (21) for the burner (8), the hot water supply temperature is adjusted and maintained at a predetermined temperature.

Also, when hot water is being supplied to the bath, the bypass solenoid valve (20) is opened, and when hot water is being supplied to the bath, the hot water tap (3) is closed.
When the water flow switch (19) is opened, the water flow switch (19) is turned on.
In response to N, the hot water temperature to be adjusted and maintained is switched to the set temperature for general hot water supply, and then the water flow switch (19
) is turned ON for a set time (about a few seconds), the bath water supply intermittent valve (13) and the bypass solenoid valve (2) are turned on.
0) is configured to close the valve, so that when the hot water tap (3) is opened during bath hot water supply,
During the above set time, the hot water remaining in the heat exchanger (7) at the temperature for bath water supply is expelled to the second hot water path (9b) for bath hot water supply, and during this set time, the hot water at the temperature for bath hot water supply is expelled. 1 Hot water route (
9a), some of the hot water at the temperature for bath hot water supply flows into the hot water supply tap (3) through the process of combining the water from the bypass path (18) and sending it to the hot water tap (3) in a lower temperature state, so that the hot water supply status changes to normal hot water supply. It is designed to switch to the state.

On the other hand, in the purification unit (4), (22) is a circulation pump that forcibly circulates the bath water, (23) is a filter that purifies the bath water, and (24) is a sterilization tank that sterilizes the bath water. The configuration is that after branching from the discharge channel (25) of the circulation pump (22), a first three-way valve (26), a filter (23), a second three-way valve (27), and a sterilization tank (2
4) in this order to the suction channel (22) of the circulation pump (22).
A branch circulation path (29) (path indicated by the - dotted chain arrow in the figure) leading to the bathtub water circulation path (28) is provided, and the circulation that passes through this separation circulation path (29) is provided in parallel with bath water circulation by the circulation pump (22). Filtering the bathtub water using a filter (23);
Then, sterilization treatment is sequentially performed using a sterilization tank (24).

The first three-way valve (26) and the second three-way valve (27) are flow path switching valves for backwashing the filter (23), and are connected to the discharge channel (25) of the circulation pump (22). The bathtub water to be diverted to the diversion circulation path (29) side is
By switching the three-way valves (26) and (27), the filter (23) is backwashed by allowing the water to pass through the filter (23) in the opposite direction to the normal direction, as shown by the dashed arrow in the figure. .

Incidentally, the bathtub water that has been subjected to a backwashing action on the filter (23) is discarded via the drainage channel (30).

As for the pipe connection configuration for the heat source unit (2) and the purification unit (4) to the bathtub (1), two pipes, an upper pipe line (31) and a lower pipe line (32), are connected to the bathtub (1). death,
Then, the second water supply path (9b) for bath hot water supply and the discharge hot water path (25) of the circulation pump (22) are connected to the upper pipe (31), and on the other hand, to the lower pipe (32), The suction water path (28) of the circulation pump (22) is connected to the pipe, and although it is equipped with a heat source unit (2) and a purification unit (4), it is a pipe that requires construction to connect directly to the bathtub (1) on-site. By using only two lines, the upper pipe line (31) and the lower pipe line (32), the equipment installation work is simplified.

Further, in the bathtub water circulation by the circulation pump (22), the circulation bathwater is supplied to the bathtub with the supply pressure of the circulation pump (22) to the bathtub connection part of the upper pipe line (31) which becomes the discharge side pipe to the bathtub (1). (1) A jet nozzle (33) is attached to eject the water in the form of a jet into the interior of the bathtub.This allows the so-called jet bath operation (jet bath) to be carried out by filtration and sterilization of the bath water by operating the circulation pump (22). processing (or
This is configured to be carried out in parallel with the above-mentioned filter backwash operation.

In the figure, (34) is an air suction pipe for mixing air bubbles into the jet water from the jet nozzle (33).

Next, to explain the operation control by the controller (5) based on the operation command from the remote controller (6), general hot water supply by opening the hot water tap (3) is possible at any time while the power is on. On the other hand, bath hot water supply and jet bath operation (operation of circulation pump (22) accompanied by filtration and sterilization of bath water or filter backwash operation)
, the remote controller (6) is equipped with a hot water filling switch (35), a jet bath switch (36), and a reheating switch (37), and in response to the operation of these switches, the controller ( 5) is configured to execute each of the following controls [A] to [C] (see FIG. 2).

In addition, a water level sensor (38) for monitoring the bathtub water level (H) and a third temperature sensor for monitoring the bathtub water temperature (T) are installed in the suction water path (28) of the circulation pump (22). (
39) is attached.

[B] When the hot water filling switch (35) is turned ON, bath hot water supply at the set hot water filling temperature (Tx) is automatically started, and then the bathtub water level ()I) changes to the set hot water filling level (Ilx). When the water level sensor (38) detects that the water level has risen to
), the bath water supply will automatically stop.

After the bath water supply is stopped (after the bath water is filled), the circulation pump (
22) for a predetermined period of time (for example, about 1 minute), and the water level sensor (
38) detected bathtub water level (Ill) (usually corresponds to the set hot water filling level (Ox)), detected bathtub water temperature (TI) by the third temperature sensor (39) (usually corresponds to the set hot water filling temperature (Tx)
), and the integrated value (Ql) of the amount of water detected by the water amount sensor (16) from the start of bath water supply to the time of stop of bath water supply (corresponds to the amount of hot water required to fill the empty bathtub (1)) are stored as initial data.

[Explanation] When the jet bath switch (36) is turned on after the above-mentioned [A] as the initial hot water filling control is completed, basically the following (a) to (c) are repeatedly executed in that order. .

(a) The circulation pump (22) is operated in parallel with the filtration and sterilization treatment of the bathtub water for a set first time period (for example, about 5 minutes).

(b) The first and second three-way valves (26) and (27) are switched to operate the circulation pump (22) in parallel with the filter backwashing operation for a set second period of time (for example, about 1 minute). do.

(c) With the first and second three-way valves (26) and (27) returned to the switching state for filtering and sterilizing bath water, for a short set third time period (for example, about IO seconds). Stop operation of the circulation pump (22).

In the repeated executions of (a) to (c) above, when the circulation pump is stopped for the first time (execution of (c) above), the detected bathtub water level (H2) at that time and the bathtub water level (H2) of the initial data stored previously are (h) (corresponding to the water level drop caused by one execution of the above-mentioned control (b) accompanied by bath water consumption due to filter backwash operation) is determined.

Then, each time the circulation pump is stopped (execution of (C)), the detected bathtub water level (U3) and the detected bathtub water temperature (T2) at that time are converted into the bathtub water level (H4) of the initial data. and bath water temperature (T,), and depending on the comparison result, the following (i
) to (iv) are alternatively executed.

(i) As a comparison result, the bathtub water level (Hl) of the initial data
When the water level decreasing (H, -Hl) is less than the set allowable water level, and the temperature lowering (1-72) with respect to the initial data bath water temperature (T1) is equal to or higher than the set allowable temperature (i.e. , if both the bathtub water level and bathtub water temperature can be left as they are, the above-mentioned steps (a) to (c) are continued.

(ii) As a comparison result, the bath water level (H
When the water level falling (HI Hl) with respect to l) is above the set allowable water level, and the temperature falling (TI Tz) with respect to the initial data bath water temperature (T1) is above the set allowable temperature (i.e. The water temperature can remain as it is, but if the bathtub water level needs to be refilled (see Figure 3 (a)), the water temperature should be set at the set hot water filling temperature (Tx) to replenish the bathtub water. Bath hot water supply is automatically started, and this replenishment bath water supply is performed based on the cumulative value of the amount of water detected by the water amount sensor (16) from the start point (
The process is continued until the amount of hot water (corresponding to the amount of replenishing hot water) reaches the water amount value q2 obtained by the following equation (1), and then the process returns to repeating the steps (a) to (c).

△H Tsu Hl -Hz 0e: As a comparison result of the amount of water consumed in one filter backwash operation (b) (iii), the bath water level of the initial data (
When the water level decreasing (Hl L) with respect to Hl) is less than the set allowable water level, and the temperature lowering (TI-TZ) with respect to the initial data bath water temperature (T1) is equal to or higher than the set allowable temperature (i.e. The water level can remain as it is, but if the bathtub water temperature needs to be raised, please refer to Section 3.
First, the circulation pump (22) is operated in parallel with the filter backwash operation, and the bathtub water consumption due to the parallel filter backwash operation is the water amount value obtained by the following equation (2). It is automatically executed only during the time when Q.

Ql: Initial data hot water supply amount TMAX: Set upper limit hot water supply temperature (for example, 93°C) Then, following this, 0. For the bathtub (1) from which only the bath water has been drained, replenishment bath water supply at the set upper limit hot water supply temperature (TMAX) is automatically started, and this replenishment bath water supply is controlled from the water flow rate sensor (16) from the start point. The integrated value of the detected water amount is Q.

The process is executed until , and then returns to the repeated execution of steps (a) to (c) described above.

(iv) As a comparison result, the bath water level (H
When the water level falling (Hl - Hl) for l) is above the set allowable water level, and the temperature falling (Tt 'h) for the initial data bath water temperature (TI) is above the set allowable temperature (i.e. , when the bathtub water level needs to be replenished and the bathtub water temperature also needs to be raised), first, the temperature value T obtained from the following equation (3) is the set upper limit hot water supply temperature (T, AW), and if the temperature value T is less than or equal to the set upper limit water supply temperature (TMAX) (T3≦TNAX), see Figure 3 (C)>, the hot water supply temperature. The replenishment bath water supply is automatically started as T, and the cumulative value of the water volume detected by the water volume sensor (16) from the start point of the replenishment bath water supply is the water volume value obtained by the above equation (1). The process is executed until the process is completed, and then the process returns to the repeated execution of steps (a) to (c) described above.

In addition, if the temperature value T is larger than the set upper limit hot water supply temperature (TMA) (TI > TMAX) (Fig. 3 (D)
), circulation pump with parallel filter backwash operation (see 22)
), the bathtub water consumption due to the parallel filter backwashing operation is calculated by subtracting the water amount value Q2 obtained from the above equation (1) from the water amount value Q obtained from the above equation (2), Qa ( = 0 * Qz), and following this, replenishment bath water supply at the set upper limit water supply temperature (TMAX) is automatically started, and the water flow sensor ( 16) until the integrated value of the detected water amount becomes the water amount value Q obtained from the above formula (2),
Thereafter, the process returns to the repeated execution of steps (a) to (c) described above.

In summary, in the above-mentioned control performed when the jet bath switch (36) is turned on, modes (i) to (iv) are switched to the bathtub during repeated execution of (a) to (c). By selectively executing the operation according to the water storage state, the bathtub water level (H) and bathtub water temperature (T) can be adjusted respectively in response to a decrease in the bathtub water level due to bathtub water consumption or a decrease in bathtub water temperature due to heat radiation, etc. , initial data bathtub water level (Hl) (set bathtub water level (
Hx)) and the initial data bath water temperature (TI
) (corresponding to the setting [c] hot water filling temperature (Tx)).

In addition, in the mode (iii) above and the mode (T, > TMAX) in (iv), the bath water level changes from the initial data by performing bath water supply to restore the bath water level and bath water temperature. When the bathtub water level (Hl) (equivalent to the set hot water filling level (Hx)) is reached, the bath water temperature reaches exactly the initial data bath water temperature (TI) (equivalent to the set hot water filling temperature (TI)). In order to
An appropriate amount of bath water is automatically discharged from 1), and this automatic discharge of bath water is performed in the form of bath water consumption through filter backwashing operation, in order to effectively utilize the discharge water. .

When the jet bath switch (36) is turned off, the above-mentioned (
The repetitive execution control of a) to (c) and the alternative execution control of the modes (i) to (iv) in the forms associated therewith are stopped.

When the reheating switch (37) is turned ON, bath hot water supply at the set upper limit hot water temperature (TMAX) is automatically started, and the reheating switch (37) is turned OFF by the user himself/herself. This will be carried out until the

In addition to the above-mentioned switches (35), (36), and (37), the remote controller (6) also controls general hot water supply temperature, hot water filling temperature (TI), and hot water filling level (lx).
Operation tools are provided to set each of the settings.

[Another example]

Next, another example will be listed.

[1] In the above-mentioned embodiment, the set hot water filling amount is determined by the bathtub water level (set hot water filling water level (Hx)), but it may be determined by the water amount value itself.

[2] Amount of water that should be discharged from the bathtub in advance (water amount value 03 in the case of mode (iii) in the above embodiment,
The detection configuration for obtaining the bathtub water storage status information (bathtub water temperature, bathtub water level, bathtub water volume, etc.) required to obtain the water volume value q4 in mode (iv) can be changed in various configurations. be.

[3] In the above-mentioned embodiment, in returning and maintaining the bathtub water level (bathtub water amount) and bathtub water temperature by alternative execution of modes (i) to (iv), after the completion of automatic hot water filling according to [a] Bathtub water level of initial data that is detection information (■1
) and the bathtub water temperature (T1) were set as the target values for recovery and maintenance, but the set values, the set hot water filling level (Hx) (set hot water filling water amount), and the set hot water filling temperature (Tx) themselves were the targets. It may be set as a value.

[4] Bathtub water utilization devices that utilize and consume water discharged from bathtubs are limited to those that utilize and consume discharged water for backwashing of a circulating filtration device for bathtub water (corresponding to filter (23) in the aforementioned embodiment). Instead, the discharged water (hot water) may be used and consumed as heat source water for heating or washing water, and the purpose of consuming the discharged water of the bathtub water utilization device may be any purpose.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief Description of the Drawings] Figures 1 to 3 show embodiments of the present invention, where Figure 1 is an overall configuration diagram, Figure 2 is a flowchart, and Figure 3 (<).
, ([1), (c), (, :) are explanatory diagrams of control forms, respectively. (1)... Bathtub, (5)... Control means, (23)... Circulating filtration processing device.

Claims (1)

[Scope of Claims] 1. To make the bathtub water temperature reach the set hot water filling temperature when the bathtub water amount reaches the set hot water filling water amount in hot water supply or water supply to the bathtub (1) with bath water present. The amount of drainage that should be discharged from the bathtub (1) in advance is determined based on the detection information of the bathtub water storage state and the hot water supply or the temperature of the water supply, and the determined amount of drainage is automatically discharged from the bathtub (1).
A bath system comprising a control means (5) for discharging water from the bathtub (1), and a bathtub water utilization device for utilizing and consuming water discharged from the bathtub (1) by the control means (5). 2. The control means (5) automatically starts hot water supply or water supply to the bathtub (1) after executing the automatic draining of the bathtub water, and after that, the bathtub water volume reaches the set hot water filling volume. 2. The bath system according to claim 1, wherein the bath system automatically stops supplying hot water or water to the bathtub (1) when the problem occurs. 3. The bath system according to claim 1 or 2, wherein the bathtub water utilization device backwashes a circulating filtration treatment device (23) for bathtub water with discharged water from the bathtub (1). 4. Claim 1, wherein the bathtub water utilization device has a heating function using high-temperature discharged water from the bathtub (1) as a heat source.
Or, the bus system described in 2. 5. Claim 1, wherein the bathtub water utilization device utilizes and consumes discharged water from the bathtub (1) as washing water.
Or, the bus system described in 2.