JP3395684B2 - Laundry pouring unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a laundry pouring unit for supplying a residual hot water in a bath, hot water from a water heater, water or the like to a fully automatic washing machine by using a bath circulation heating / hot water supply device. .

[0002]

2. Description of the Related Art Conventionally, the remaining hot water in a bath or hot water from a water heater is supplied to a fully automatic washing machine, and the operating state of the fully automatic washing machine is determined from the state of water flow in a water supply path. It is known to supply residual hot water from a bath or hot water or water from a water heater according to its operating state. For example, JP-A-5-115679
What is described in the publication is to provide a running water sensor in the water supply path leading to the opening / closing valve controlled by the fully automatic washing machine, and after the operation in the washing mode is started, the running water sensor does not continuously detect running water. This mode is maintained until the set time is exceeded, and heating selection means for selecting heating or non-heating,
Both the tap water supply means for selecting either the tap water supply means or the bath water supply means are operably controlled, and when the set time is exceeded, the rinse mode is entered and the water supply selection means is forced to tap water. Only the heating selection means can be operated by selecting the supply means.

[0003]

However, in the above-mentioned conventional pouring and pouring apparatus for a washing machine, after setting the washing mode and the rinsing mode, the start switch (standby switch in the above publication) is set. Although it is to put in and start the operation of the fully automatic washing machine, recent fully automatic washing machines have a reserved operation function, and when this reserved operation is set, the fully automatic washing machine will be operated until the set time. The machine does not operate, and the solenoid valve in the water supply path remains closed, so it enters the standby state. At this time, if the residual hot water wash is selected, the pump provided in the bath water heater of the bath water supply means remains in operation, and there were problems such as noise, durability of the pump, and waste of electric power. . Also, for hot water pouring and pouring equipment for washing machines that do not have a hot and cold water mixing valve, when the hot water washing mode is selected, and when the fully automatic washing machine is in reserved operation, when the hot water washing mode is selected and the start switch is turned on. , It is necessary to set the hot water supply temperature of the water heater to the temperature set for pouring hot water in the washing machine (for example, 40 ° C) and prohibit the change of the hot water supply temperature until the washing mode ends (clothes will be damaged if heated to a high temperature) Therefore, there is a problem that the desired temperature cannot be set when using other hot water supply until the fully automatic washing machine starts operating.

An object of the present invention is to provide a method for controlling a washing and pouring unit which prevents the pump from continuously operating for a long time and does not restrict the hot water supply set temperature when washing in the hot water washing mode. .

[0005]

According to a first aspect of the present invention, there is provided a wash pouring unit for bath circulation.
Bath equipped with ring heat exchanger, hot water supply heat exchanger and circulation pump
It is connected to a water heater and a washing machine to heat tap water, or
Or the means to supply to the washing machine without heating and the remaining hot water in the bathtub.
Means to supply to the washing machine with or without heating
The equipped washing pouring circuit has a pouring solenoid valve and a three-way valve.
However, the pouring side outlet of the three-way valve is connected to the pouring pipe, and the pouring pipe is
It communicates with the washing machine, the water injection solenoid valve communicates with the water supply pipe,
Moreover, it is connected to the pouring pipe by a pipe and opens the pouring solenoid valve.
Water can be supplied to the washing machine by the three-way valve a,
b, c switching state, three-way valve switching state a
The hot water in the bathtub is circulated in the bath by driving the pump.
It is circulated through a heat exchanger and is a three-way valve switching type.
State b is the condition that the remaining amount in the bathtub is reduced by driving the circulation pump.
Hot water is supplied from the pouring pipe to the washing machine.
Switch the three-way valve to the pressure contained in the pipeline.
It can be released to the bath circulation circuit side by rotating to c
After opening the water injection solenoid valve, close the water injection solenoid valve and
The one-way valve is once turned to the switching state c to perform the pressure relief operation.
However, during operation of the bath water heater that uses the bath circulation circuit,
Washing note characterized by not performing the pressure relief operation
It is a hot water unit. The laundry pouring unit according to claim 2.
The bath circulation heat exchanger, hot water supply heat exchanger and circulation pump
It is connected to the provided bath water heater and a washing machine to add tap water.
Means for supplying the washing machine with or without heating, and a bath
Supply the remaining hot water in the tank to the washing machine with or without heating
In the washing pouring circuit equipped with a means for
It has a three-way valve, and the bath circulation circuit goes to the water inlet of the three-way valve.
The inlet pipe is connected, and the bath-side outlet of the three-way valve is connected to the bath circulation circuit.
The bath outlet pipe is connected, and the pouring side outlet of the three-way valve is connected to the pouring pipe.
The pouring pipe is in communication with the washing machine, and the pouring solenoid valve is
It is in communication with the water supply pipe that supplies tap water, and
Connected to the pouring pipe, open the pouring solenoid valve to supply water to the washing machine.
Can be supplied, and the three-way valve can switch between a, b, and c.
The switching state a of the three-way valve is provided so that the circulation pump can be driven.
By, the hot water in the bathtub is circulated through the bath circulation heat exchanger.
The switching state b of the three-way valve is used for the circulation pump.
The remaining hot water in the bathtub is washed from the pouring pipe by driving the
It is supplied to the rinsing machine, and if it is not contained in the pipeline.
The generated pressure is turned to the switching state c of the three-way valve to circulate the bath.
Can be released to the ring circuit side and opened the water injection solenoid valve
Later, the water injection solenoid valve was closed and the three-way valve was once switched.
Rotate to c to release the pressure, but use the bath circulation circuit.
Perform the pressure relief operation while the bath water heater to be used is operating.
It is a laundry pouring unit characterized by not performing.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. Referring to FIG. 11, a schematic structure of a water heater and hot water feeder having a washing and hot water pouring unit to which the present invention is applied will be described. The bath water heater 1 includes a bath circulation heat exchanger 2 and a hot water heat exchanger 3.
And is heated by a heat source (not shown). A bath inflow pipe 5 and a bath return pipe 6 are connected to the bath circulation heat exchanger 2, a circulation pump 7 is provided in the bath return pipe 6 having the other end communicating with the bathtub 4, and the bath inflow pipe 5 is washed. It is introduced into the pouring unit 8 and connected to the water inlet 91 of the three-way valve 9,
The bath outlet pipe 51 is connected to the bath-side outlet 92 of the three-way valve 9, and the other end of the bath outlet pipe 51 communicates with the bathtub 4. Further, a hot water supply pipe 3 for supplying cold water (tap water) to the hot water supply heat exchanger 3 and a hot water supply pipe 32 for sending heated hot water to a predetermined hot water supply place are connected to the hot water supply heat exchanger 3.

In the washing pouring unit 8, the pouring side outlet 93 of the three-way valve 9 is connected to the filter chamber 10 having the filter 101, and the pouring pipe 11 having the water flow switch 12 is connected to the filter chamber 10. A communication pipe 13 is connected to the bath inflow pipe 5 via a pressure relief valve 14, and a drain pipe 15 having a water draining plug 151 is connected thereto. The pouring pipe 11 is connected to the washing machine 27 via the faucet 26, one end of the hot water supply pipe 16 is connected between the filter chamber 10 and the water flow switch 12, and the other end of the hot water supply pipe 16 is connected in series. Is connected to the pouring solenoid valve 19 and the pouring solenoid valve 20 via the check valves 17 and 18 arranged at, and the pouring solenoid valve 19 has a hot water supply branched from the hot water supply pipe 32 of the hot water heat exchanger 3. A branch pipe 23 is connected via a backflow resistance valve 21, and a water injection solenoid valve 20 is branched from a water supply pipe 31 to filter it.
A water supply branch 24 having 25 is connected via a water governor 22.

Referring to FIG. 12, the switching state of the three-way valve 9 will be described. The rotating position of the valve body 90 rotated by the motor 9A is detected by a limiter switch (not shown).
(A) is a circulation position (for example, a rotation angle of 0 degree), and the water inlet 91
And the bath-side outlet 92, that is, the bath outflow pipe 5 and the bath outflow pipe 51 are communicated with each other, and the circulating pump 7 is driven to heat the hot water in the bathtub 4 from the bath return pipe 6 to the bath circulation heat exchanger. After passing through 2, the bath inlet pipe 5, the three-way valve 9 and the bath outlet pipe 51 are circulated and heated. (B) is a residual hot water pouring position (for example, a turning angle of 180 degrees), and the pouring pipe 11 is communicated with the pouring water inlet 91 and the pouring side outlet 93, that is, the bath inflow pipe 5 and the filter chamber 10. By driving the circulation pump 7, the residual hot water in the bathtub 4 is passed through the bath return pipe 6, the bath circulation heat exchanger 2, the bath inflow pipe 5, the three-way valve 9, and the pouring pipe 11 through the faucet 26. Water is poured into the washing machine 27, and at this time, it is heated by a heat source (not shown) if necessary. (C) is a backwash position (for example, a rotation angle of 90 degrees), which is an inlet 91, a bath-side outlet 92, and a pouring-side outlet.
93, that is, the bath inflow pipe 5, the bath outflow pipe 51, and the pouring pipe 11 are communicated with each other, and water is supplied from the water supply branch pipe 24 to the bath inflow pipe 5 and the bath outflow pipe 51 through the pouring pipe 11 and the filter chamber 10. By doing so, the filter 101 in the filter chamber 10 is washed.

Referring to FIG. 13, an example of the remote controller of the laundry pouring unit 8 will be described. The remote controller 33 includes an operation switch 34 and an operation switch lamp 34.
1, start switch 35 and start switch lamp 35
1, Selection switch 36 to select one of the remaining hot water washing course using the remaining hot water in the bathtub 4, the hot water washing course using the hot water from the hot water heat exchanger 3 and the cold water washing course. , And a display section 37 having a pouring course lamp 371 for displaying the selected pouring course and water rinsing course.

The operation will be described below.
When turned on, the power turns on and the operation switch / lamp 341
Lights up. When the pouring course is selected by pressing the selection switch 36, the pouring course lamp 371 corresponding to the selected pouring course lights up, and when the start switch 35 is pressed thereafter, washing is performed in the selected pouring course, and then It moves to water rinsing. In selecting the pouring course,
When the residual hot water washing course is selected, the three-way valve 9 is rotated to the residual hot water pouring position (see FIG. 12b), the circulation pump 7 is operated, and the pouring electromagnetic valve 19 and the pouring electromagnetic valve 20 are closed. By holding the remaining hot water in the bathtub 4,
It is supplied from the pouring pipe 11 to the washing machine 27 through the filter chamber 10.

If the washing machine 27 is set to the reserved operation when the residual hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses and water is not injected. 12 is off. When the water flow switch 12 remains off for a predetermined time, that is, when there is no water flow in the pouring pipe 11 for a predetermined time, the three-way valve 9 is set to the circulating position (Fig.
12a) to stop the circulation pump 7 and
Open 20 and stand by in the state of a water washing course in which the water supply branch pipe 24 communicates with the pouring pipe 11. With this configuration, unnecessary continuous operation of the circulation pump 7 can be prevented.

When the reserved time has passed and a water flow is generated in the pouring pipe 11 and the water flow switch 12 is turned on, the previously selected residual hot water washing operation is restored, and the three-way valve 9 causes the residual hot water pouring position. (See FIG. 12b), the circulation pump 7 is restarted, and the water injection solenoid valve 20 is closed. At this time, since the water governor 22 is provided to limit the water flow rate, the water supply branch pipe 24 reduces the water hammer that occurs when the water injection solenoid valve 20 is closed from the water flow state.

When the residual hot water washing is completed, the circulation pump 7 is stopped, the three-way valve 9 is rotated to the backwash position (FIG. 12c), the water injection solenoid valve 20 is opened, and the pouring pipe 11 is moved to the filter chamber 10. Cold water is supplied and the filter 101 is washed (filter backwash) to finish the residual hot water washing process, and then the three-way valve 9 is rotated to the circulation position (Fig. 12a) to shift to the water rinsing process.

When the hot water washing course is selected, the hot water supply set temperature T _s of the hot water supply heat exchanger 3 of the bath water heater 1 is changed to the wash pouring set temperature T _sw (for example, when T _s > 40 ° C.). Is T _sw = 40 ° C, and when T _s ≦ 40 ° C, T _sw = T _s ), three-way valve 9
While the pouring position is maintained at the circulating position (FIG. 12a), the pouring electromagnetic valve 19 is opened to supply the hot water from the pouring pipe 11 to the washing machine 27. After the washing with hot water is completed, the pouring solenoid valve 19 is closed and the water rinsing course is started.

When the washing machine 27 is set to the reserved operation when the hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses and water is not injected. Is off. When the water flow switch 12 remains off for a predetermined time, that is, when there is no water flow in the pouring pipe 11 for a predetermined time, the pouring electromagnetic valve 19 is closed, the pouring electromagnetic valve 20 is opened, and the hot water supply of the hot water heat exchanger 3 is performed. Set temperature Ts
After returning to the original state, the water supply branch pipe 24 is brought into communication with the pouring pipe 11 and waits in a state of a water washing process.

With this configuration, a hot water washing course is selected,
When the washing machine 27 is set to the reserved operation, the hot water supply set temperature Ts can be arbitrarily set until the reserved time elapses. When the water flow is generated in the pouring pipe 11 and the water flow switch 12 is turned on after the reserved time has elapsed, the hot water supply set temperature Ts is changed to the wash pouring set temperature Tsw, and the pouring solenoid valve 20 is closed and the pouring is performed. The hot water solenoid valve 19 is opened to supply hot water from the pouring pipe 11 to the washing machine 27 to start washing with hot water.

When the water washing course is selected, the water injection solenoid valve 20
Open the water flow switch 12, that is, check that there is a water flow in the pouring pipe 11
If the water flow switch 12 continues to be turned off for a predetermined time (for example, 3 minutes) while water is being injected into 27, the water rinsing step is performed, assuming that the water washing step has been completed. When the water flow switch 12 remains on for a predetermined time (for example, 18 hours), or for a predetermined time (3 minutes)
When a predetermined time (for example, 2 hours) has elapsed after the water flow switch 12 has not been turned off, the water rinsing process is omitted, the water injection solenoid valve 20 is closed, and the water injection operation is completed.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the control operation of the present invention will be described with reference to the flowcharts of FIGS. In FIG. 1, when the operation switch 34 is turned on, the operation lamp 341 lights up,
The pouring course lamp 371 lights up. The pouring course lamp 371 to be turned on is predetermined, and in this embodiment, the indicator lamp for the remaining hot course is turned on first. When the start switch 35 is turned on after selecting the residual hot water washing course, the start switch lamp 351 lights up, the initial state is checked, and the process shifts to the residual hot water washing process to supply the residual hot water in the bathtub 4 to the washing machine 27. To do. After the residual hot water washing process is completed, the filter backwashing process is performed, and water is passed through the filter 101 from the opposite direction to wash the filter 101, then the water rinsing process is performed and water rinsing is performed. , The three-way valve 9 is once rotated to the backwash position (FIG. 12c) and then to the circulation position (FIG. 12a) to stop, and after the waiting time t (for example, 1 hour) has elapsed, the start switch lamp is turned on. 351, the operation lamp 341, and the pouring course lamp 371 are turned off to complete the washing.

When the hot water washing course is selected and the start switch 35 is turned on, the start switch lamp 351 is turned on, the initial state is checked, and then the process is changed to the hot water washing process. Hot water from the hot water supply device 1 is supplied to the washing machine 27. After the washing with hot water, the process proceeds to the water rinsing step, as in the case of finishing the residual hot water washing course, and the washing is finished after the rinsing with water. When you select the water washing course and turn on the start switch 35, the start switch lamp 351 lights up, the initial state check is performed, and then the process moves to the water washing process and the water injection solenoid valve 20 is opened and water from the water supply branch pipe 24 is opened. Is supplied to the washing machine 27. After the washing with water is completed, as in the case of the course of washing with the remaining hot water, the process proceeds to the water rinsing step, and after the rinsing with water, the washing is finished.

Referring to FIG. 2, the initial state check will be described. After confirming that the water flow switch 12 is off, that is, there is no water flow in the pouring pipe 11, the three-way valve 9 is in the circulating position (see FIG.
12a) is confirmed by the limiter switch of the three-way valve 9, and the initial state check is completed. Now, when the water flow switch 12 is turned on, that is, when there is a signal indicating that water is flowing through the pouring pipe 11, the first initial time t _F1 (for example, 25
If the water flow switch 12 is turned on even after a lapse of a second, the operation lamp 341 flashes one point (lighting and extinguishing are alternately repeated once at a constant rhythm) and an alarm is issued. Further, when the signal indicating that the three-way valve 9 is not in the circulation position (FIG. 12a) is output, the second initial time t _F2 (for example, 25
If it is not confirmed that the three-way valve 9 is in the circulation position (Fig. 12a) even after elapse of seconds, the operation lamp 341 blinks twice (lighting is repeated twice every two times with one long extinction). ) And give an alarm. Check the alarm that the operation lamp 341 blinks 1 point or 2 points, turn off the operation switch 34, and then start switch lamp 351 and operation lamp 341.
After turning off the pouring course lamp 371, remove the cause of the above state and restart.

The remaining hot water washing process will be described with reference to FIG.
After driving the circulation pump 7 and turning the three-way valve 9 to the residual hot water pouring position (Fig. 12b), confirm that the three-way valve 9 is at the residual hot water pouring position (Fig. 12b), and turn on the water flow switch 12. After confirming that it is turned on, that is, that there is water flowing through the pouring pipe 11, the pouring electromagnetic valve 19 and the pouring electromagnetic valve 20 are kept closed, and the remaining hot water in the bathtub 4 is taken into the bath entrance pipe. 5 to the washing machine 27 from the pouring pipe 11 through the filter chamber 10. The water flow switch 12 is continuously supplied until the water flow switch 12 is continuously turned off for a predetermined time (for example, 3 minutes).
Is continuously turned off for a predetermined time (3 minutes), it is determined that the residual hot water washing process is completed, and the process proceeds to a filter backwashing process described later.

However, the third initial time t _F3 (for example, 25
3 way valve 9 remains hot water pouring position (Fig. 12b)
If not, turn off the circulation pump 7 and turn on the operation lamp 341.
After confirming the two-point blinking alarm, turn off the operation switch 34, turn off the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371, and then eliminate the cause of the above-mentioned condition. Reboot.

If the washing machine 27 is set to the reserved operation when the residual hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses, water is not injected, and the water flow switch is set. 12 is off, so 3-way valve 9
Is in the remaining hot water pouring position (Fig. 12b), the water flow switch 12 does not turn on even after the first waiting time t _w1 (for example, 5 minutes) has elapsed due to the reserved operation of the washing machine 27, that is, the pouring pipe. If water flow inside 11 is not detected, set the three-way valve 9 to the circulating position (Fig.
12a), to stop the circulation pump 7 and
Open 20 and wait in the state of washing with water. After waiting in the state of washing with water, the third waiting time t _w3 (for example, 18 hours)
When the water flow switch 12 is turned on by the time, that is, when the water flow in the pouring pipe 11 is detected, it is determined that the reserved time of the washing machine 27 has elapsed and the washing is started, and the water pouring is performed. The electromagnetic valve 20 is closed, the circulation pump 7 is started, the three-way valve 9 is rotated to the residual hot water pouring position (Fig. 12b), and the residual hot water in the bathtub 4 is poured from the bath entrance pipe 5 through the filter chamber 10. Pipe 11 washing machine 27
Supply to.

On the other hand, when the water flow switch 12 does not turn on even after the elapse of the third waiting time t _w3 (18 hours), that is, the pouring pipe 11
If water flow inside is not detected, close the water injection solenoid valve 20,
The three-way valve 9 is once rotated to the backwash position (Fig. 12c) to perform the pressure relief operation, and then rotated to the circulation position (Fig. 12a) to be stopped, and after the waiting time t (1 hour) has elapsed, start. The switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off to complete the washing. By this pressure release operation, when the washing machine 27 finishes the water rinsing operation and closes the water injection solenoid valve 20, the solenoid valve (not shown) in the washing machine 27 is connected between the check valve 18 and the three-way valve 9. Pressure trapped in the pipeline (washing machine
It is possible to let the three-way valve 9 once turn to the backwash position (FIG. 12c) to the bath circulation circuit side, because of the water hammer by closing the solenoid valve inside 27). The packing around the valve body 90 of the three-way valve 9 can be prevented from being deformed or deteriorated, and the durability of the three-way valve 9 can be enhanced. In addition,
In the filter chamber 10, the communication pipe 13 is communicated with the bath inflow pipe 5 via the pressure relief valve 14, and the enclosed pressure is reduced to a certain level or less, so that the enclosed pressure is too high. The load on the drive motor for the three-way valve 9 is prevented from becoming excessive and the valve body 90
It is possible to prevent damage to the packing around.

If the second waiting time t _w2 (for example, 30 minutes) elapses while the water flow switch 12 is on,
Rotate the three-way valve 9 to the circulation position (Fig. 12a) to rotate the circulation pump 7
, The three-way valve 9 is once rotated to the backwash position (FIG. 12c) and then to the circulation position (FIG. 12a) to stop.
Start switch lamp after waiting time t (1 hour)
351, the operation lamp 341, and the pouring course lamp 371 are turned off to complete the washing.

Referring to the filter backwash process in FIG. 4, the three-way valve 9 is rotated to the circulation position (FIG. 12a),
After confirming that it is in the circulation position (Fig. 12a), the circulation pump 7 is stopped, the water injection solenoid valve 20 is opened, and the three-way valve 9 is rotated to the backwash position (Fig. 12c) to open the water injection solenoid valve 20. Is
Cold water is supplied from the pouring pipe 11 to the filter chamber 10
101 is washed (filter backwash), and then the three-way valve 9 is rotated to the circulation position (Fig. 12a) to shift to the water rinsing stroke.

When the three-way valve 9 is first rotated to the circulation position (FIG. 12a) during the filter backwash process, the circulation position is _maintained even after the fourth waiting time t _w4 (for example, 25 seconds) has elapsed. (Fig. 12a) When it is not possible to confirm that it is in (Fig. 12a), the circulation pump 7 is stopped and the alarm in which the operation lamp 341 blinks at two points is confirmed, the operation switch 34 is turned off, and the start switch lamp 351, After turning off the operation lamp 341 and the pouring course lamp 371, remove the cause of the above-mentioned condition and restart.

When the three-way valve 9 is rotated to the backwash position (FIG. 12c), the three-way valve 9 remains in the backwash position (FIG. 12c) even if the fifth waiting time t _w5 (for example, 25 seconds) elapses. ) Is not confirmed, stop the circulation pump 7 and confirm the alarm that the operation lamp 341 blinks at 2 points, and then press the operation switch 34
Switch off, start switch lamp 351, operation lamp
After turning off the 341 and the pouring course lamp 371, eliminate the cause of the above-mentioned condition and restart.

The hot water washing process will be described with reference to FIG.
After checking the initial state, the hot water supply heat exchanger 3 of the bath water heater 1
Of change in T _sw the hot water supply set temperature T _s in the washing pouring the set temperature of the hot water (T _s> time of 40 ℃ is _{T sw = 40 ℃, T s} ≦ 40 ℃ when the T _sw = T _s), Bathroom remote controller (not shown,
The priority lamp of the bathroom remote control will blink to indicate that the hot water washing process has been entered, and the pouring solenoid valve 19 will be opened while the three-way valve 9 is held at the circulation position (Fig. 12a), and the hot water supply branch pipe will be displayed. 23, hot water is supplied from the pouring pipe 11 to the washing machine 27.

Hot water supply is continued until the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), and when the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), the bath water heater The hot water discharge operation of No. 1 is stopped, the priority lamp of the bathroom remote control is returned to simple lighting, the hot water supply set temperature T _s is returned to the set value set by the bathroom remote control, and then the pouring electromagnetic valve 19 is closed and the pouring electromagnetic valve is closed. The valve 20 is opened to shift to the water rinsing stroke.

If the washing machine 27 is set to the reserved operation when the hot water washing course is selected, the washing machine 27 is stopped until the reserved time elapses, and water is not injected,
Since water switch 12 is off, if off water flow switch 12 has continued for a first standby time t _w1 (5 min), there is no i.e. Note first standby time in the hot water pipe 11 t _w1 (5 min) water flow In this case, close the pouring electromagnetic valve 19 and open the pouring electromagnetic valve 20 to confirm that tapping of the bath water heater 1 has been stopped, and then return the priority lamp of the bathroom remote control to simple lighting to perform the hot water washing process. It indicates that normal hot water can be discharged without any action, and the hot water supply set temperature T _s is returned to the set value set by the bathroom remote controller, and the water supply branch pipe 24 is connected to the pouring pipe 11 to stand by in the washing process.

When the water flow switch 12 is turned on before the third waiting time t _w3 (18 hours) elapses, that is, when the water flow in the pouring pipe 11 is detected, the hot water supply set temperature T _s is set to the washing pouring temperature. Change temperature to T _sw (when T _s > 40 ℃, T _sw = 40 ℃, T _s ≦ 40
When the temperature is ℃, T _sw = T _s ), the priority lamp of the bathroom remote controller (not shown, hereinafter referred to as the bathroom remote controller) is blinked to indicate that the bath has been washed, and the water injection solenoid valve 20
Is closed and the pouring electromagnetic valve 19 is opened, hot water is supplied from the hot water supply branch pipe 23 and the pouring pipe 11 to the washing machine 27 to wash the hot water, and the water flow switch 12 is continuously operated for a predetermined time (3 minutes). Then, supply of hot water is continued until it is turned off.

When the water flow switch 12 does not turn on even after the third waiting time t _w3 (18 hours) has passed, that is, the pouring pipe 11
If water flow inside is not detected, close the water injection solenoid valve 20,
After turning the three-way valve 9 once to the backwash position (Fig. 12c) and then to the circulation position (Fig. 12a) to stop it, after waiting time t (1 hour) elapses, the start switch lamp 351, the operation lamp
341, pouring course lamp 371 goes out, and washing is completed.

Further, if the water flow switch 12 does not turn off continuously for a predetermined time (3 minutes) even after the fourth waiting time _tw4 (for example, 18 hours), the pouring electromagnetic valve 19 is closed. , The three-way valve 9 is once rotated to the backwash position (Fig. 12c) and then to the circulation position (Fig. 12a) to stop the waiting time t.
After (1 hour) has passed, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed.

The water washing process will be described with reference to FIG. 6. After checking the initial state, the water injection solenoid valve 20 is opened and the water flow switch is opened.
Water flow is continued until 12 is continuously turned off for a predetermined time (3 minutes), and when it is confirmed that the water flow switch 12 is continuously turned off for a predetermined time (3 minutes), a water rinsing process is started. . After the initial state check, even if the water injection solenoid valve 20 is opened, if the water flow switch 12 remains off and the third waiting time _tw3 (18 hours) elapses, the water injection solenoid valve 20 is closed and the three-way valve 9
Once to the backwash position (Fig. 12c) and then to the circulation position (Fig.
12a) is rotated and stopped, and after the waiting time t (1 hour) has elapsed, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off and the washing is completed. Also,
Even if the water flow switch 12 is continuously turned on and the sixth waiting time t _w6 (for example, 2 hours) elapses, the water flow switch 12 remains in the predetermined time (3
If it does not turn off continuously during (1 minute), the water injection solenoid valve 20 is closed, the three-way valve 9 is once rotated to the backwash position (FIG. 12c), and then to the circulation position (FIG. 12a). After stopping and waiting time t (1 hour), start switch lamp 351,
The operation lamp 341 and the pouring course lamp 371 are turned off and the washing is completed.

The water rinsing process will be described with reference to FIG.
This is a transition after the filter backwashing process, hot water washing process, or water washing process in the residual hot water washing course is completed.Because the water injection solenoid valve 20 is opened, the washing machine 27 starts water flow and the water flow. When the switch 12 is turned on and the water flow is confirmed, the water flow switch 12 sets the set time t ₀ (for example, 15 minutes).
When the water is continuously turned off, that is, when there is no continuous water flow in the pouring pipe 11 for the set time t ₀ (15 minutes), it is determined that the water rinsing process is completed, the pouring electromagnetic valve 20 is closed, and the three-way valve 9 is temporarily turned on. After rotating to the backwash position (Fig. 12c) to perform the pressure relief operation,
Rotate to the circulation position (Fig. 12a) to stop, and wait time t
After (1 hour), the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off, and the washing is completed.

Immediately after shifting to the water rinsing process, the first set time t ₁ (for example, 18 hours) elapses without turning on the water flow switch 12, or the water flow switch 12 is set for the set time t ₀ (15 minutes). ) When the second set time t ₂ (for example, 2 hours) elapses without being continuously turned off, the water injection solenoid valve 20 is closed, and the three-way valve 9 is temporarily turned to the backwash position (FIG. 12c) to apply pressure. Circulation position after removal operation (Fig. 12a)
After the waiting time t (1 hour) has elapsed, the start switch lamp 351, the operation lamp 341, and the pouring course lamp 371 are turned off and the washing is completed.

As described above, in the above embodiment, when the water rinsing process is completed, the water injection solenoid valve 20 is closed, and then the three-way valve 9 is once rotated to the backwash position (FIG. 12c) to perform the pressure relief operation. However, when the bath water heater 1 side is monitoring the water level of the bathtub 4 with the pressure sensor and performing the automatic operation, if the washing pouring unit 8 is installed at a position higher than the water level in the bathtub 4, When the three-way valve 9 is switched to the backwash position (Fig. 12c), the water in the wash pouring unit 8 flows out due to the difference in the head pressure, and the check valve 18 opens to suck in air. Since air is mixed in the bath circulation circuit (bath circulation heat exchanger 2, bath entrance pipe 5, bath return pipe 6, etc.), the pressure sensor that detects the pressure based on the bath water level via the bath circulation circuit is a bathtub. Since there is a problem that the water level in 4 will be mistaken, During operation of the bath water heater 1 for use bath circulation circuit does not perform the pressure vent operation.

FIG. 8 shows the operation when the remaining hot water washing course is stopped midway. When the operation switch 34 is turned off, the start switch lamp 351 and the pouring course lamp 37 are shown.
1, the operation lamp 341 goes out, and the three-way valve 9 is at the circulating position (Fig.
12a) is turned to stop and the circulation pump 7 is stopped to end.

FIG. 9 shows the operation when the hot water washing course is stopped midway. When the operation switch 34 is turned off, the start switch lamp 351 and the pouring course lamp 37 are shown.
1, the operation lamp 341 goes off, the priority lamp of the bathroom remote control is returned to simple lighting, indicating that normal hot water discharge is possible instead of the hot water washing process, and the hot water supply set temperature Ts is the set value set by the bathroom remote control. After returning to, the pouring solenoid valve 19
Is closed, the three-way valve 9 is once rotated to the backwash position (FIG. 12c) and then to the circulation position (FIG. 12a) to stop and end.

FIG. 10 shows the operation when the water washing course is stopped midway. When the operation switch 34 is turned off, the start switch lamp 351 and the pouring course lamp 37 are shown.
1. The operation lamp 341 is turned off, the water injection solenoid valve 20 is closed, the three-way valve 9 is once rotated to the backwash position (Fig. 12c) and then to the circulation position (Fig. 12a) to stop and end. .

[0042]

Since the present invention is constructed as described above, it has the following effects. When the remaining hot water washing course or the hot water washing course is selected and there is no water flow to the washing machine until the first waiting time elapses, the remaining hot water washing step for supplying the residual hot water or the hot water washing for supplying the hot water Interrupt the process,
When the remaining hot water washing course or hot water washing course is selected by opening the water injection solenoid valve and waiting for the water washing process to supply the washing machine without heating the tap water, and the washing machine is set for reserved operation In addition, unnecessary continuous operation of the circulation pump can be prevented until the reserved time elapses, and the hot water supply set temperature can be arbitrarily set. In addition, if you select the remaining hot water washing course or the hot water washing course and wait for the washing process, and water is flowing into the washing machine, the original remaining hot water washing process or By returning to the hot water washing process, when the washing machine is set for the reserved operation, the residual hot water washing course or the hot water washing course can be reliably started when the reserved time has elapsed.

[Brief description of drawings]

FIG. 1 is a flowchart showing the operation of the present invention.

FIG. 2 is a flowchart showing an operation of initial state check.

FIG. 3 is a flowchart showing an operation of a residual hot water washing process.

FIG. 4 is a flowchart showing the operation of a filter backwash process.

FIG. 5 is a flowchart showing an operation of a hot water washing process.

FIG. 6 is a flowchart showing an operation of a water washing process.

FIG. 7 is a flowchart showing an operation of a water rinsing process.

FIG. 8 is a flowchart showing an operation at the end of the residual hot water washing course.

FIG. 9 is a flowchart showing an operation at the end of the hot water washing course.

FIG. 10 is a flowchart showing an operation at the end of the water washing course.

FIG. 11 is a schematic configuration diagram of a laundry pouring unit to which the present invention is applied.

FIG. 12 is an explanatory diagram of switching of the three-way valve of the laundry pouring unit.

FIG. 13 is a plan view of an operation surface of the remote controller.

[Explanation of symbols]

1 bath water heater, 2 bath circulation heat exchanger, 3 hot water heat exchanger, 4 bathtub 5 bath inlet pipe, 6 bath return pipe, 7 circulation pump, 8
Laundry pouring unit 9 3-way valve, 10 Filter chamber, 11 Pouring pipe, 12 Water flow switch 19 Pouring solenoid valve, 20 Pouring solenoid valve, 22 Water governor, 23
Hot water supply branch pipe 24 Water supply branch pipe, 26 faucet, 27 washing machine, 31 water supply pipe,
32 Hot water supply pipe

Continuation of the front page (56) Reference JP-A-7-124383 (JP, A) JP-A-7-127908 (JP, A) JP-A-11-319381 (JP, A) JP-A-2000-24383 (JP, A) Actual development Sho 62-78885 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) D06F 39/08 301 A47K 3/00 F24D 17/00 F24H 1/00 602

Claims (2)

(57) [Claims] 1. A bath circulation heat exchanger, hot water supply heat exchanger and circulation
Connected to a bath water heater with a ring pump and a washing machine,
In a washing pouring circuit provided with means for supplying tap water to the washing machine with or without heating, and means for supplying residual hot water in the bathtub to the washing machine without heating, note
It has a water solenoid valve and a three-way valve, and the pouring side outlet of the three-way valve is a pouring pipe.
, The pouring pipe is connected to the washing machine, and the pouring solenoid valve
Is connected to the water supply pipe and connected to the pouring pipe by the pipe
The water injection solenoid valve can be opened to supply water to the washing machine.
Yes, the three-way valve has a switching state of a, b, c
In the switching state a, the bath is operated by driving the circulation pump.
The hot water in the tank is circulated through the bath circulation heat exchanger.
Yes, the switching state b of the three-way valve can drive the circulation pump.
To supply the remaining hot water in the bathtub to the washing machine from the pouring pipe.
And the pressure contained in the pipe,
Rotate the three-way valve to the switching state c and release it to the bath circulation circuit side.
The water injection can be done after the water injection solenoid valve is opened.
Close the solenoid valve and once turn the three-way valve to the switching state c.
Bath supply that performs pressure relief but uses a bath circulation circuit
Do not execute the pressure relief operation while the water heater is operating.
Laundry pouring unit characterized by . 2. A bath circulation heat exchanger, hot water supply heat exchanger and circulation
Connected to a bath water heater with a ring pump and a washing machine,
Supply tap water to the washing machine with or without heating
Means and the remaining hot water in the bath with or without heating
In the washing pouring circuit equipped with means for supplying to the machine,
It has a water solenoid valve and a three-way valve.
A bath entrance pipe of the road is connected, and a bath is placed at the bath side outlet of the three-way valve.
The bath outlet pipe of the circulation circuit is connected, and the pouring side outlet of the three-way valve
Is connected to the pouring pipe, the pouring pipe is connected to the washing machine,
The solenoid valve is in communication with a water supply pipe that supplies tap water, and
It is connected to the pouring pipe by a pipe and opens the pouring solenoid valve to fill the water.
Can be supplied to the washing machine, the three-way valve is a, b, c
The three-way valve switching state a has a switching state
By driving, the hot and cold water in the bathtub is circulated in the bath
The three-way valve switching state b is
In the bathtub by driving the circulation pump Pouring the remaining hot water
It is supplied from the hot water pipe to the washing machine, and
Rotating the enclosed pressure to the switching state c of the three-way valve
Then, it can be released to the bath circulation circuit side.
After opening the valve, close the water injection solenoid valve and turn on the three-way valve.
The pressure is released by turning to the switching mode c.
During operation of the bath water heater that uses the ring circuit, release the pressure.
Washing pouring unit characterized by not performing
To.