JP2506435B2 - Bus system - Google Patents

Description

The present invention includes a heat source unit that heats water from a water supply channel to supply hot water to a bathtub, and a control unit that controls the heat source unit. However, when the amount of bath water in the bath reaches the set hot water amount, the amount of drainage to be discharged from the bath in advance so that the bath water temperature reaches the set hot water temperature, The present invention relates to a bus system which is constructed based on detection information and the temperature of hot water or hot water, and is configured to automatically discharge the obtained drainage amount from the bath.

[Conventional technology]

A bus system having such a configuration is disclosed in JP-A-63-70043.
According to the bath system disclosed in this publication, when there is an unnecessarily large amount of high-temperature residual water or low-temperature residual water in the bathtub, the control means should discharge it from the bathtub in advance. Since the amount of discharge is calculated and discharged automatically, it is possible to fill with water at an appropriate temperature and amount, which is very convenient in actual use.

However, in this bus system, the discharged water is discarded as it is when it is automatically discharged by the control means, or is stored in the storage tank for the purpose of reuse, and therefore, there are the following problems. .

[Problems to be Solved by the Invention]

That is, it is economically wasteful to discard the discharged water as it is, and even if the discharged water is stored in the storage tank, it is difficult to use the stored discharged water, and eventually it may not be effectively used. .

In addition, it is possible to use the discharged water as washing water for a washing machine, for example, but it is not always the case that there is discharged water when washing is desired, and the amount of discharged water is not constant. However, it could not always be used effectively, and there was room for improvement in this respect.

The present invention focuses on such a problem, and its purpose is to consider the peculiarity of discharged water such as the discharge timing, discharge amount, discharge temperature, etc. The purpose is to provide a bus system that can be used effectively.

[Means for solving the problem]

To achieve this object, the main features of the bath system according to the present invention include a heat source unit that heats water from a water supply channel to supply hot water to a bath, and a control unit that controls the heat source unit. Detecting the amount of drainage water to be discharged from the bathtub in advance so that the bathtub water temperature reaches the set hot water temperature when the amount of water in the bathtub reaches the set hot water level. A bus system configured to circulate hot and cold water in the bathtub, which is obtained based on information and the temperature of hot water or hot water and is configured to automatically discharge the obtained amount of drainage water from the bathtub. A circulation pump and a circulation filtration treatment device are interposed between the control means and the control means for circulating purification of the bath water by the circulation filtration treatment device and backflow cleaning of the circulation filtration treatment device with the bath water by the automatic discharge. That there is a point that is configured to switch operation, its functions and effects are as follows.

[Work]

That is, since the control means for controlling the heat source unit automatically discharges the detection information of the bath water storage state, and the drainage amount obtained based on the hot water or the temperature of the hot water from the bath, after the discharge from the bath. When hot water supply or water supply is executed, when the bath water amount reaches the set hot water amount, the bath water temperature becomes exactly the set hot water temperature.

Since the water discharged from the bathtub is used for backwashing of the circulation filtration processing device that circulates and purifies the hot water in the bathtub, even if the discharge timing or discharge amount is not constant, there is a particular problem. In addition, since the backwashing is performed by the control means, the backwashing is automatically executed every time the bath is discharged.

〔The invention's effect〕

As described above, according to the bath system of the present invention, even when there is a large amount of high-temperature residual water or low-temperature residual water in the bathtub that is more than necessary, an appropriate temperature and an appropriate amount of hot water can be filled, and
It is possible to effectively and effectively use the drainage water from the bathtub in which the discharge timing, the discharge amount, and the like are not constant, and to perform the backflow cleaning of the circulation filtration processing device automatically and reliably.

In the above-described configuration of the present invention, the control means automatically starts hot water supply or water supply to the bathtub after executing the automatic bathtub water discharge, and thereafter, when the bathtub water amount reaches the set hot water filling amount. If the hot water supply or water supply to the hot water is automatically stopped (corresponding to claim 2), in order to obtain the hot water condition at the preset hot water temperature and the preset hot water amount from the state where the bath water is in the bathtub. The filling operation can be performed automatically, and the convenience in the filling operation can be further improved even when there is bath water in the bathtub. If a water level sensor and a temperature sensor for detecting a bathtub water storage state are provided in the suction hot water passage of the circulation pump (corresponding to claim 3), for example, a water level sensor or a temperature sensor may be provided in the bathtub. In comparison, these sensors do not interfere with bathing and are excellent in appearance.

〔Example〕

 Next, examples will be described.

FIG. 1 shows the overall configuration of the bath system. (1) is a bathtub, (2) is a heat source unit for supplying hot water to the bathtub (1) and general hot water to the hot water tap (3), and (4).
Is a purifying unit for purifying bath water, (5) is a controller as a control means for controlling operation, and (6) is a remote controller for giving an operation command to the controller (5).

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

The hot water supply passage (9) from the heat exchanger (7) is branched into a first hot water passage (9a) for general hot water supply and a second hot water passage (9b) for bath hot water supply. On the upstream side, a hot water supply passage (9) is provided with a first temperature sensor (10) and a water amount adjusting valve (11), and a check valve (12) is provided in the first hot water passage (9a) after branching. On the other hand, on the other hand, in the second hot water passage (9b) after branching,
A bath hot water intermittent valve (13) and a vacuum breaker (14) for preventing backflow of bath water are attached.

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

Reference numeral (18) is a bypass passage for short-circuiting the water branched from the water supply passage (15) to the first hot water passage (9a) on the downstream side of the check valve (12). Has
A water flow switch (19) that senses the water flow and turns on, and a bypass solenoid valve (20) are attached.

As for hot water supply operation control by the controller (5), in the case of general hot water supply, the burner (8) responds to the fact that the water amount sensor (16) detects the water flow amount as the hot water tap (3) is opened.
By performing ignition operation, general hot water is supplied to the hot water tap (3), and in the case of bath hot water, the bath hot water intermittent valve (13) is opened and the bath hot water intermittent valve (13) is operated. In response to the water flow sensor (16) detecting the water flow rate when the valve is opened, the burner (8) is ignited to supply hot water to the bathtub (1).

Then, in both cases of general hot water supply and bath hot water supply, based on the water amount detected by the water amount sensor (16) and the temperature detected by the first and second temperature sensors (10), (17), the water amount adjusting valve ( 11) or the fuel supply amount adjusting valve (21) for the burner (8) is adjusted to maintain the hot water supply temperature at a predetermined temperature.

Also, the bypass solenoid valve (20) is opened during bath hot water supply, and the hot water tap (3) during bath hot water supply.
When the water flow switch (19) is turned on, the hot water supply temperature to be adjusted and maintained is switched to the set temperature for general hot water, and then the water flow switch (19) is turned on.
The bath hot water supply / interruption valve (13) and the bypass solenoid valve (20) are configured to be closed when a set time (several seconds) has passed since the hot water tap (3 ) Is opened, the hot water of the bath hot water temperature remaining in the heat exchanger (7) is expelled to the second hot water bath (9b) for bath hot water during the set time, and this set time is set. For hot water at a bath hot water temperature that partially flows into the first hot water passage (9a) for general hot water supply during
The hot water supply state is switched to the general hot water supply state through the process of combining the water from 8) and sending it to the hot water supply tap (3) in a state of low temperature.

On the other hand, in the purification unit (4), (22) is a circulation pump for forcedly circulating bath water, (23) is a filter as a circulation filtration processing device for purifying bath water, and (24) is sterilization for sterilizing bath water. It is a tank, and has a flow path configuration of a first three-way valve (26), a filter (23), a second three-way valve (27), after branching from the discharge hot water passage (25) of the circulation pump (22),
The circulation pump (22) is provided with a shunt circulation path (29) (a path indicated by a dashed line arrow in the figure) that leads to the suction hot water passage (28) of the circulation pump (22) through the sterilization tank (24) in this order. In parallel with the bath water circulation by the filter, the circulating bath water passing through the diversion circulation path (29) is filtered by the filter (23), and
The sterilization treatment is carried out sequentially by the sterilization tank (24).

The first three-way valve (26) and the second three-way valve (27) are flow path switching valves for performing a backwash operation on the filter (23), and from the discharge hot water passage (25) of the circulation pump (22). The bath water that diverts to the side of the diversion circulation path (29) is supplied to the first and second three-way valves (2
The filter (23) is backwashed by passing the filter (23) in the direction opposite to the normal direction as indicated by the broken line arrow in the figure by the switching operation of 6) and (27).

The bath water that has been backwashed against the filter (23) is discarded through the drainage channel (30).

As a pipeline connection configuration of the heat source unit (2) and the purification unit (4) to the bathtub (1), two baths of an upper pipeline (31) and a lower pipeline (32) are connected to the bathtub (1). Then, the second hot water supply passage (9b) and the discharge hot water passage (25) of the circulation pump (22) are connected to the upper pipe passage (31), while the lower pipe passage (32) is connected. The suction hot water passage (28) of the circulation pump (22) is connected to the above, and while the heat source unit (2) and the purification unit (4) are provided, direct field connection construction to the bathtub (1) is possible. By only using two pipes, the upper pipe (31) and the lower pipe (32), the installation work of the device is simplified.

In the bathtub water circulation by the circulation pump (22), the bathtub connection portion of the upper pipe line (31), which is a discharge side pipe line for the bathtub (1), is used to supply the circulation bathwater with the supply pressure of the circulation pump (22). A jet nozzle (33) for jetting into the inside of (1) is attached, whereby a circulation pump (2
By the operation of 2), the so-called jet bath operation (jet bath) is carried out in parallel with the above-mentioned filtering / sterilization treatment for bath water (or the above-mentioned filter backwash operation).

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

Next, the operation control by the controller (5) based on the operation command from the remote controller (6) will be described. General hot water with the hot water tap (3) opened can be set at any time in the power-on state. On the other hand, for bath hot water supply and jet bath operation (operation of circulation pump (22) accompanied by filtration / sterilization of bath water or filter backwash operation), a remote controller (6) has a hot water switch (35). ), A jet bath switch (36), and a reheating switch (37) are provided, and in response to the operation of these switches, the controller (5) controls the following [a] to [c]. Is executed (see FIG. 2).

In the suction hot water passage (28) of the circulation pump (22), a water level sensor (38) for monitoring the bath water level (H) and a third temperature sensor for monitoring the bath water temperature (T). (39)
Is attached.

[B] When the hot water switch (35) is turned ON, bath hot water at the preset hot water temperature (Tx) will automatically start, and then the bath water level (H) will reach the preset hot water level (Hx). When the rise is detected by the water level sensor (38) (that is, when the setting of the preset hot water level (Hx) is completed at the preset hot water temperature (Tx)), the hot water supply to the bath is automatically stopped.

Then, after the bath hot water supply is stopped (after the filling of water is completed), the circulation pump (22) is operated for a predetermined time (for example, about 1 minute), and the bathtub water level detected by the water level sensor (38) after the circulation pump is operated for the predetermined time. (H ₁ ) (usually equivalent to the set hot water level (Hx)), the bath temperature (T ₁ ) detected by the third temperature sensor (39) (usually equivalent to the set hot water temperature (Tx)), and Each of the integrated values (Q ₁ ) of the amount of water detected by the water amount sensor (16) from the time when the bath hot water starts to the time when the bath hot water is stopped (corresponding to the amount of hot water required to fill the empty bathtub (1)) is used as initial data. Remember.

[B] 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 a mode in which the bath water is filtered and sterilized in parallel for a set first time (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 a mode in which the filter backwashing operation is performed in parallel for a second time (for example, about 1 minute) To do.

(C) With the first and second three-way valves (26), (27) returned to the switching state for filtering / sterilizing bath water, only for a short time, the third time (for example, about 10 seconds). Stop the operation of the circulation pump (22).

In the above repeated execution of (a) to (c), when the circulation pump is stopped for the first time (execution of (c) above), the detected bathtub water level (H ₂ ) at that time and the bathtub water level of the initial data previously stored. The difference (ΔH) from (H ₁ ) (corresponding to the water level drop width caused by one execution of the control in (b) accompanied by the consumption of bath water by the filter backwash operation) is obtained.

Then, at each time when the circulation pump is stopped (execution of (c)), the detected bathtub water level (H ₃ ) at that time and the detected bathtub water temperature (T ₂ ) at that time are set to the bathtub level of the initial data ( H ₁ ) and bath water temperature (T ₁ ), and depending on the comparison result, the following (i) to keep appropriate temperature and amount
Selectively execute the mode of (iv).

(I) As a comparison result, when the water level drop width (H ₁ −H ₃ ) with respect to the bathtub water level (H ₁ ) of the initial data is less than the set allowable water level width,
Also, when the temperature decrease width (T ₁ −T ₂ ) with respect to the bath water temperature (T ₁ ) of the initial data is less than the set allowable temperature width (that is, when the bath water level and the bath water temperature are acceptable as they are). Continues the repeat execution of the above (a) to (c).

(Ii) As a comparison result, when the water level drop width (H ₁ −H ₃ ) with respect to the bathtub water level (H ₁ ) of the initial data is equal to or greater than the set allowable water level width,
Moreover, when the temperature decrease width (T ₁ −T ₂ ) with respect to the bath water temperature (T ₁ ) of the initial data is less than the set allowable temperature range (that is, the bath water temperature may be the same as it is, but If bath water needs to be replenished) (Fig. 3 (a))
)), The bath hot water at the set hot water temperature (Tx) is automatically started to replenish the bath water, and this supplementary bath hot water is integrated by the amount of water detected by the water amount sensor (16) from the start point. The amount of water Q ₂ (corresponding to the amount of hot water replenished) is obtained by the following equation (1)
Until the above condition is reached, and then the process returns to the repeated execution of (a) to (c).

Qe: Amount of water consumed in one filter backwash operation (b) (iii) As a result of comparison, the bath water level (H ₁ ) in the initial data
When the water level decrease width (H ₁ −H ₃ ) is less than the set allowable water level width and the temperature decrease width (T ₁ −T ₂ ) with respect to the bathtub water temperature (T ₁ ) in the initial data is greater than the set allowable temperature range. (That is, when the bath water level may be the same as it is, but the bath water temperature needs to be raised) (see FIG. 3 (b)), first, in a mode in which the filter backwash operation is performed in parallel. The circulation pump (22) is automatically operated for a time during which the water consumption of the bathtub due to the parallel filter backwash operation becomes the water amount value Q ₃ obtained by the following equation (2).

Q ₁ : Hot water supply amount of initial data T _MAX : Set upper limit hot water temperature (eg 93 ° C) And, following this, the bathtub (1) in which only Q _{3 of} bath water was discharged due to the above-mentioned filter backwash operation On the other hand, the supplementary bath hot water supply at the set upper limit hot water supply temperature (T _MAX ) is automatically started, and the supplemental bath hot water supply is calculated as Q _{3 when} the cumulative amount of water detected by the water amount sensor (16) from the start The process is repeated until the above, and then the process is returned to the repeated execution of the above (a) to (c).

(Iv) As a comparison result, when the water level drop width (H ₁ −H ₃ ) with respect to the bathtub water level (H ₁ ) of the initial data is equal to or greater than the set allowable water level width,
Moreover, when the temperature decrease width (T ₁ −T ₂ ) with respect to the bath water temperature (T ₁ ) of the initial data is equal to or more than the set allowable temperature width (that is, the bath water level needs to be replenished with the bath water,
When it is necessary to raise the bath water temperature as well), first, it is determined whether or not the temperature value T ₃ obtained by the following equation (3) is below the set upper limit hot water supply temperature (T _MAX ), Q ₂ : If the temperature value T ₃ is less than the set upper limit hot water supply temperature (T _MAX ) (T ₃ ≤ T _MAX ), the amount of water obtained by the equation (1) (see Fig. 3 (c)) , The supplementary bath hot water with the hot water supply temperature T ₃ is automatically started, and the supplementary bath hot water supply is obtained from the above equation (1) by the cumulative value of the amount of water detected by the water amount sensor (16) from the start time. performed until the water amount value Q ₂ to which are, thereafter, returns to repeat execution of the aforementioned (a) ~ (c).

Further, when the temperature value T ₃ is higher than the set upper limit hot water supply temperature (T _MAX ), (T ₃ > T _MAX ) (see FIG. 3 (D)), the circulation pump in the form of parallel filter backwash operation (2
The water amount value obtained by subtracting the water amount value Q ₂ obtained by the above equation (1) from the water amount value Q ₃ obtained by the above equation (2) for the bath water consumption due to the parallel filter backwash operation Q ₄
(= Q ₃ −Q ₂ ), and automatically starts supplemental hot water supply at the set upper limit hot water supply temperature (T _MAX ). performed until the integrated value of the detected water amount by amount of water sensor (16) is the water amount value Q ₃ obtained by the equation (2), then returns to repeat execution of the aforementioned (a) ~ (c).

In short, in the control of the above item [b] performed by turning on the jet bath switch (36), the modes (i) to (iv) are changed to the bathtub in the repeated execution of (a) to (c). By selectively executing according to the water storage state, the bathtub water level (H) and the bathtub water temperature (T) are respectively adjusted against the bathtub water level decrease due to bathtub water consumption and the bathtub water temperature decrease due to heat radiation and the like. , Automatically returns to the initial data bath water level (H ₁ ) (corresponds to the set hot water level (Hx)) and the initial data bath water temperature (T ₁ ) (corresponds to the set hot water temperature (Tx)) I try to maintain it.

In addition, in the mode of (iii) above and the mode of (T ₃ > T _MAX ) in (iv), the bath water level is set to the initial data by performing bath hot water supply to restore the bath water level or the bath water temperature. When the bath water level (H ₁ ) (corresponding to the set hot water level (Hx)) is reached, the bath water temperature is exactly the same as the initial data of the bath water temperature (T ₁ ) (set hot water temperature (Tx). ), An appropriate amount of bath water is automatically drained from the bath (1) in advance. This automatic drain of bath water is performed in the form of bath water consumption by the filter backwash operation. Therefore, the effective use of the discharged water is achieved.

When the jet bath switch (36) is turned off, the repetitive execution control of the above (a) to (c) and the alternative execution control of the modes (i) to (iv) in the form accompanying it are performed. Stop.

[C] When the reheating switch (37) is turned ON, bath hot water at the set upper limit hot water supply temperature (T _MAX ) is automatically started, and the heating switch (37) is operated by the user himself / herself. OF
F Perform until operated.

In addition to the switches (35), (36), and (37), the remote controller (6) includes general hot water supply temperature, hot water temperature (Tx), and hot water level (Hx). The operating tools for setting the are provided.

[Another embodiment]

 Next, another embodiment will be listed.

[1] In the above embodiment, the set amount of hot water is set to be captured at the bath water level (set hot water level (Hx)).
You may make it catch with the water amount value itself.

[2] Amount of drainage to be discharged from the bathtub in advance (water amount value Q ₃ in the mode of (iii) in the above embodiment, (iv)
The detection configuration for obtaining the bathtub water storage state information (the bathtub water temperature, the bathtub water level, the bathtub water amount, etc.) required to obtain the water volume value Q ₄ in the mode of (1) can be modified in various ways.

[3] In the above-described embodiment, when the bath water level (bath water amount) and the bath water temperature are restored and maintained by selectively executing the modes (i) to (iv), after the completion of the automatic hot filling by [a]. Initial bathtub water level (H ₁ ) which is detection information,
Also, the bath water temperature (T ₁ ) was used as the target value for maintaining the return,
The set hot water level (Hx) (set hot water amount), which is the set value, and the set hot water temperature (Tx) itself may be set as the target values.

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

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is an overall configuration diagram, FIG. 2 is a flow chart, and FIG.
(B), (C), and (D) are explanatory diagrams of the control mode, respectively. (1) …… Bathtub, (2) …… Heat source unit, (5) ……
Control means, (15) ... water supply channel, (22) ... circulation pump,
(23) …… Circulation filtration processor, (28) …… Suction hot water passage,
(38) …… Water level sensor, (39) …… Temperature sensor.

Front Page Continuation (72) Inventor Yoshihiko Tsuda 1-52, 1-52, Oka, Minami-shi, Minato-ku, Osaka City, Osaka Prefecture (56) References JP 63-70043 (JP, A) Actual 63-168013 (JP, U) Actually opened 63-54384 (JP, U) Actually opened 62-97438 (JP, U)

Claims (3)

(57) [Claims] 1. A heat source unit (2) for heating water from a water supply channel (15) to supply hot water to a bathtub (1), and a control means (5) for controlling the heat source unit (2). The control means (5) discharges from the bathtub (1) in advance so that the bathtub water temperature reaches the set bathtub temperature when the bathwater amount in the bathtub (1) reaches the set bathwater temperature. A bath configured to determine the amount of drainage to be stored based on the detection information of the bath water storage state and the temperature of hot water or water supply, and automatically discharge the determined amount of drainage from the bath (1). A system, wherein a circulation pump (22) and a circulation filtration treatment device (23) are provided in a circulation path for circulating hot and cold water in the bathtub (1), and the control means (5) performs the circulation filtration treatment. Circulation purification of bath water by the device (23), Serial circulating filtration bus system are configured to a backwashing to switching operation of the device (23). 2. The control means (5) automatically starts hot water supply or water supply to the bathtub (1) after the execution of the automatic bath water discharge, and thereafter, the bath water amount is set to the set hot water level. The bus system according to claim 1, wherein hot water supply or water supply to the bathtub (1) is automatically stopped when the amount of water overhang is reached. 3. The bath according to claim 1, wherein a water level sensor (38) and a temperature sensor (39) for detecting the bathtub water storage state are provided in the suction hot water passage (28) of the circulation pump (22). system.