JP3782844B2 - Remembrance control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a memorial control method in which a bathtub and a heater are connected by a circulation path and heated while circulating hot water in the bathtub.
[0002]
[Prior art]
As a conventional tracking control method, for example, the temperature of hot water is measured after a lapse of a certain time since the start of tracking, and the measured temperature is set as a reference temperature to a target temperature obtained by adding the temperature of the rise to the reference temperature. There is something that was made to boil up.
[0003]
[Problems to be solved by the invention]
However, in such a conventional chasing control method, when chasing is started during bathing, the chased hot water hits the bather before reaching the entire bathtub and is taken into the circulation path again, and this state is repeated. If the temperature of the hot water taken in is taken as the reference temperature, the reference temperature is higher than the actual temperature of the hot water in the bathtub, so that it may boil above the desired temperature.
In addition, when the hot water reaches the target temperature, the chasing is stopped, but it is not chased in an appropriate state. If the hot water in the bathtub is stirred as a whole, the temperature of the hot water may be lower than the target temperature as a result. There was a problem that occurred.
The present invention has been made paying attention to such a conventional problem, and it is possible to accurately measure the temperature of hot water in a bathtub by determining the situation such as bathing, and based on an accurate reference temperature. If the time to reach the target temperature is shorter than the scheduled time and the temperature of the hot water has not reached the target temperature after circulating for a certain period of time, re-medication is performed and the target temperature is reached. It aims at providing the memorial control method which can be heated up.
[0004]
[Means for Solving the Problems]
The gist of the present invention for achieving this object resides in the invention described in the following items.
1 A memorial control method in which a bathtub (18) and a heater (13, 14) are connected by a circulation path (12) and heated while circulating hot water in the bathtub (18). The temperature of hot water before the start or the temperature of hot water after a lapse of a certain time from the start of tracking is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for the tracking.
A memorial control method, characterized in that, when hot water during memorialization becomes lower than the reference temperature, the lowering temperature is used as a reference temperature, and the temperature of the rise is added and heated.
[0005]
2 A memorial control method in which a bathtub (18) and a heater (13, 14) are connected by a circulation path (12) and heated while circulating hot water in the bathtub (18). The temperature of hot water before the start or the temperature of hot water after a lapse of a certain time from the start of tracking is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for the tracking.
The time until the water reaches the target temperature from the reference temperature is less than the scheduled time which is the heating time for raising the minimum amount of circulatable water that can be expected in the bathtub by a predetermined temperature (ΔT ° C.) In addition, when the temperature of the hot water becomes lower than the target temperature after the hot water is circulated for a certain period of time, the memory control method is performed again.
[0006]
3 A memorial control device in which a bathtub (18) and a heater (13, 14) are connected by a circulation path (12) and heated while circulating hot water in the bathtub (18). The temperature of hot water before the start or the temperature of hot water after a lapse of a certain time from the start of tracking is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for the tracking.
A hot water temperature sensor (16) for detecting the reference temperature and the temperature of hot water during memorialization;
A storage unit (22) for recording information of the reference temperature;
When the reference temperature detected by the hot water temperature sensor (16) is compared with the temperature of the hot water during chasing, the temperature of the hot water during chasing is lower than the reference temperature. An operation unit (21) for outputting a low reference temperature to the storage unit (22) to rewrite the reference temperature of (22) to the low temperature and to boil up based on the low reference temperature. Memorial control device.
[0007]
4 A memorial control device in which a bathtub (18) and a heater (13, 14) are connected by a circulation path (12) and heated while circulating hot water in the bathtub (18). The temperature of hot water before the start or the temperature of hot water after a lapse of a certain time from the start of tracking is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for the tracking.
A hot water temperature sensor (16) for detecting the reference temperature and the temperature of hot water during memorialization;
A storage unit (22) for recording a scheduled time from the reference temperature to the target temperature and the target temperature;
A calculation unit (21) that compares the temperature of the hot water with the target temperature, and compares the time from the reference temperature to the target temperature with the scheduled time;
The calculation unit (21) increases the minimum amount of circulatable water that can be predicted in the bathtub from the reference temperature to the target temperature by at least a predetermined temperature (ΔT ° C) for the additional cooking . When it is determined that the temperature of the hot water is lower than the target temperature after a predetermined time, which is the heating time, and after circulating the hot water for a certain period of time, a driving circuit that outputs a memorial signal again ( 24) and a memorial control device.
[0008]
Next, the operation of the invention described in each of the above items will be described.
When detecting the reference temperature of the hot water in the bathtub (18) before the start of the memory or after a lapse of a certain time from the start of the memory, for example, the hot water in the bathtub (18) is circulated or memorized in the circulation path (12). The temperature of the hot and cold water is detected after being circulated or memorized for a certain time.
[0009]
For example, when a memorial is performed during bathing, a phenomenon occurs in which hot and cold water that has been circulated and boiled hits the bather and is taken into the circulation path (12) again. Boil up to the target temperature plus the minute temperature.
When the bather moves during the memorial service and the uncirculated hot water in the bathtub (18) is taken into the circulation path (12) and becomes a temperature lower than the initially set reference temperature, the initial set reference temperature is Based on the newly rewritten reference temperature, it is assumed that the state is inappropriate. Thereby, for example, hot water is prevented from being chased above a desired temperature.
[0010]
In the memory control method according to claim 2,
If the time until the water reaches the target temperature from the reference temperature is less than the scheduled time and the temperature of the hot water becomes lower than the target temperature after the hot water has been circulated for a certain time, the memorization is performed again. Since it is performed, it is determined that the chasing has been performed in an inappropriate state, and hot water can be boiled to a desired target temperature.
[0011]
In the memory control device according to claim 3,
When the calculation unit (21) compares the reference temperature detected by the hot water temperature sensor (16) with the temperature of the hot water during the chasing, the temperature of the hot water during the chasing is lower than the reference temperature. Since the reference temperature of the storage unit (22) is rewritten to a low temperature and the low reference temperature is output to the storage unit (22) in order to boil up based on the low reference temperature, the default reference temperature is inappropriate. In this state, the water is boiled based on the newly rewritten reference temperature, thereby preventing hot water from being chased above a desired temperature, for example.
[0012]
In the memory control device according to claim 4,
When the calculation unit (21) determines that the time until the boiling point rises from the reference temperature to the target temperature is less than the scheduled time, and that the temperature of the hot water has become lower than the target temperature after circulating the hot water for a certain period of time. Since the chasing signal is output again to the drive circuit (24), it is determined that chasing has been performed in an inappropriate state, and hot water can be heated to a desired target temperature.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Each figure shows an embodiment of the present invention.
As shown in FIG. 2, the present invention is applied to a bathtub 10, and the bathtub 10 includes a bathtub 18, a circulation line 12 that is a circulation path for circulating water in the bathtub 18, and a heater. The circulation pipe 12 is formed by connecting a return pipe 12 a to an outgoing pipe 12 b via a pump 15, and a heater includes a burner 13 and a heat exchanger 14.
[0014]
A gas supply pipe is connected to the burner 13 via a gas valve 13a, and a thermistor 16 and a flowing water sensor 17 are provided on the return pipe 12a.
[0015]
As shown in FIG. 1, the temperature detection signal of the thermistor 16 is AD-converted, and the temperature detection signal for every predetermined time is written in the storage unit 22. A remote control panel 20 is connected to the storage unit 22, and an operation switch, a memorial operation switch, and a hot water temperature display unit are disposed on the control panel 20. A memory control program is recorded in the storage unit 22.
In the memory control program, a memory operation signal is output by the memory operation switch of the control panel 20, the storage unit 22 outputs a memory start signal to the drive circuit 24, and the pump 15 is energized by the drive circuit 24. The pump 15 is started and the water in the bathtub 18 circulates in the circulation line 12. When the water in the bathtub 18 circulates in the circulation line 12, the flowing water sensor 17 detects this, and when detected, the storage unit 22 outputs a gas valve control signal to the drive circuit 24. The gas valve actuator is energized and activated, the gas valve 13a is opened, the burner 13 is ignited, the water in the circulation line 12 is heated in the heat exchanger 14, passes through the forward pipe 12b, and the bathtub 18 Returned to
[0016]
The timer 23 writes time information in the storage unit 22 before and after the output of the tracking start signal. When a certain time (t1: 30 seconds) has elapsed since the start of the memory, the storage unit 22 sets the temperature information (bath temperature) written from the thermistor 16 as the reference temperature T0 at the time. The calculating part 21 calculates the elapsed time (heating time t0) from the reference temperature measurement. The calculating unit 21 adds the temperature ΔT for the memorial increase to the reference temperature T0, and the added temperature is written in the storage unit 22 as the target temperature.
The arithmetic unit 21 compares the temperature information from the thermistor 16 periodically written in the storage unit 22 with the target temperature during the memorial, and if the temperature information from the thermistor 16 matches the target temperature, A gas valve control signal is output to the drive circuit 24, the energization to the actuator for the gas valve is interrupted by the drive circuit 24, the gas valve 13a is closed, and the energization to the pump 15 is interrupted by the drive circuit 24. It stops and the water in the bathtub 18 does not circulate through the circulation line 12.
[0017]
When the temperature information from the thermistor 16 is lower than the reference temperature T0 before the passage of a certain time (t4: 90 minutes) from the start of bath combustion, the storage unit 22 rewrites the reference temperature to the lower temperature. The measurement of the heating time t0 is started again.
Further, when the bath temperature reaches the target temperature, the calculation unit 21 increases the heating time t0 and a predetermined minimum heating time (t2: the minimum amount of water that can be circulated that can be predicted in the bath by a predetermined temperature ΔT ° C. comparing the estimated time and a heating time), the result of the comparison, the storage unit 22, the heating time t0 is less than a predetermined minimum heating time t2, the arithmetic unit 21, when a predetermined time has elapsed t3, the thermistor 16 When the bathtub temperature is lower than the target temperature as a result of comparing and comparing the bathtub temperature from the target temperature, the storage unit 22 outputs a gas valve control signal to the drive circuit 24, and the drive circuit 24 performs gas The valve actuator 25 is energized, the gas valve actuator 25 is operated, the gas valve 13a is opened, the burner 13 is ignited, and combustion is started.
[0018]
For example, specifically, t2 is set to about 50 seconds. There are three types of bathtubs: Western style, Japanese style, and Japanese / Western style. When a circulation fitting is attached to a Japanese style (750 size) bathtub, the minimum mounting center is 80 mm and the diameter of the circulation fitting is 80 mm. If it is possible to circulate normally at the upper 30 mm, the minimum circulating water amount is about 63 liters from the formula of 65 × 65 × (8 + 8/2 + 3) when D × W of the bathtub is 65 cm × 65 cm. When the heating capacity of the bath is 10,000 kcal / h, ΔT = 2 ° C., and thermal efficiency 80%, t2 = ((63 liters × 2 ° C.) / (10000 × 0.8)) × 3600 seconds = 56.7 seconds Become. For example, since the minimum circulating water amount in the case of a Western-style bathtub (1600) is 97 liters from the calculation formula of 60 × 108 × 15, t2 may be adjusted at the time of equipment installation.
[0019]
Next, the operation will be described.
When a chasing operation signal is output from the chasing operation switch of the control panel 20 in step 101, the storage unit 22 outputs a chasing start signal to the driving circuit 24, and in step 102, the pump 15 Is energized, the pump 15 is started, and the water in the bathtub 18 circulates in the circulation line 12.
[0020]
When the water in the bathtub 18 circulates in the circulation line 12, the flowing water sensor 17 detects this, and when the flowing water sensor 17 detects the circulation of water in step 103, the storage unit 22 supplies gas to the drive circuit 24. The valve control signal is output, the gas valve actuator 25 is energized by the drive circuit 24, the gas valve actuator 25 is activated, the gas valve 13a is opened, and the burner 13 is ignited and circulated in step 104. The water in the pipe 12 is heated in the heat exchanger 14 and returned to the bathtub 18 through the forward pipe 12b. In this way, the water in the bathtub 18 is circulated and heated.
[0021]
The timer 23 writes time information in the storage unit 22 before and after the output of the tracking start signal. In step 105, when a fixed time (t1: 30 seconds) has elapsed since the start of the memory, in step 106, the storage unit 22 uses the temperature information (bath temperature) written from the thermistor 16 as the reference temperature T0. And In step 107, the calculation unit 21 starts measurement of the heating time t0, and in step 121, the t0 flag is set.
Further, in step 108, the calculation unit 21 adds the temperature ΔT for the memorial increase to the reference temperature T0, and the added temperature is written in the storage unit 22 as the target temperature.
[0022]
In step 109, the calculation unit 21 compares the bath temperature from the thermistor 16 periodically written in the storage unit 22 with the target temperature during the memorial, and the bath temperature from the thermistor 16 becomes the target temperature. In step 110, the storage unit 22 outputs a gas valve control signal to the drive circuit 24. The drive circuit 24 cuts off the power supply to the gas valve actuator 25, closes the gas valve 13a, and stops combustion. Is done. At this time, the pump 15 continues to operate. Moreover, in step 111, the calculating part 21 complete | finishes calculation of the heating time t0.
In step 122, when the calculation unit 21 determines that the t0 flag is “present”, in step 112, the heating time t0 is compared with the predetermined minimum heating time t2, and as a result of comparison, the storage unit 22 determines that the heating time t0. Is longer than the predetermined minimum heating time t2, in step 113, the storage unit 22 outputs a follow-up end signal to the drive circuit 24. The drive circuit 24 cuts off the energization of the pump 15, and the pump 15 stops. Thus, the water in the bathtub 18 does not circulate in the circulation conduit 12. In step 122, when the calculation unit 21 determines that the t0 flag is “none”, the process proceeds directly to step 113, where the pump 15 stops and the water in the bathtub 18 does not circulate in the circulation line 12. When the pump 15 is stopped in step 113, a series of operations is ended in step 114.
[0023]
In step 109, when the bath temperature from the thermistor 16 does not reach the target temperature, in step 115, the calculation unit 21 determines whether or not a fixed time t4 has elapsed since the start of bath combustion, and starts bath combustion. When a certain time t4 has elapsed from the time, the operation mode is shifted to an error mode as an operation error.
In step 115, the calculation unit 21 determines whether or not a certain time t4 has elapsed since the start of bath combustion. If the certain time t4 has not elapsed since the start of bath combustion, in step 116, the thermistor 16 If the bathtub temperature is lower than the reference temperature T0, the measurement of the heating time t0 is stopped in step 117, the process returns to step 106, and the reference temperature is rewritten to the lower temperature. In Step 107, the measurement of the heating time t0 is started again.
[0024]
In step 116, when the bathtub temperature is higher than the reference temperature T0, the process returns to step 109 to determine whether the bathtub temperature and the target temperature are high or low. If the bath temperature does not reach the target temperature, steps 115, 116 and 109 are repeated.
On the other hand, when the calculation unit 21 determines in step 112 that the heating time t0 when the bath temperature reaches the target temperature is shorter than the predetermined minimum heating time t2, in step 123, the t0 flag is cleared, and step 118 is performed. In step 119, the calculation unit 21 determines whether or not a fixed time t3 has elapsed from the stop of bath combustion. When the fixed time t3 has elapsed from the stop of bath combustion, in step 119, the calculation unit 21 When the bathtub temperature from the thermistor 16 is compared with the target temperature, and the bathtub temperature is lower than the target temperature, the storage unit 22 outputs a gas valve control signal to the drive circuit 24 in step 120. Then, the actuator 25 for the gas valve is energized by the drive circuit 24, the actuator 25 for the gas valve is activated, and the gas valve 13 Opens, the burner 13 is ignited, the combustion is started, the process returns to step 109, operation unit 21 determines whether or not the bath temperature reaches the target temperature.
[0025]
In step 119, when the bathtub temperature is higher than the target temperature, in step 113, the storage unit 22 outputs a memory end signal to the drive circuit 24, and the drive circuit 24 cuts off the energization of the pump 15, and the pump 15 stops and the water in the bathtub 18 does not circulate through the circulation line 12.
In the above embodiment, the level of the reference temperature and the bathtub temperature are compared, and the heating time and the predetermined minimum heating time are compared to detect the situation of the bathtub, and whether or not the memory control is appropriate. However, it is also possible to perform only one of both comparisons. This also improves the memorial performance.
[0026]
【The invention's effect】
According to the memorial control method according to the present invention, the situation such as bathing is discriminated and the temperature of the hot water in the bathtub can be accurately measured, so that it can be boiled up based on an accurate reference temperature. In addition, when the time to reach the target temperature is shorter than the scheduled time and the temperature of the hot water does not reach the target temperature after circulating for a certain time, it is possible to carry out the reheating and bring it up to the target temperature.
[Brief description of the drawings]
FIG. 1 is a block diagram of a memory control device showing an embodiment of the present invention.
FIG. 2 is a conceptual diagram of a bath tub showing an embodiment of the present invention.
FIG. 3 is a flowchart of the memory control device showing one embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Bath pot 12 ... Circulation line 13 ... Burner 14 ... Heat exchanger 15 ... Pump 16 ... Thermistor 17 ... Flowing water sensor 18 ... Bath 20 ... Control panel 21 ... Calculation part 22 ... Memory | storage part 24 ... Drive circuit 25 ... Gas valve Actuator

Claims (4)

It is a memorial control method in which a bathtub and a heater are connected by a circulation path and heated while circulating hot water in the bathtub, and a certain time has elapsed from the temperature of hot water before the start of memorial or the start of memorial In the case where the temperature of the hot water afterwards is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for remembrance,
When the hot water becomes lower than the reference temperature during the memorial, the memorial control method is characterized in that the lowered temperature is used as a reference temperature and the temperature is raised by adding the temperature of the rise. It is a memorial control method in which a bathtub and a heater are connected by a circulation path and heated while circulating hot water in the bathtub, and a certain time has elapsed from the temperature of hot water before the start of memorial or the start of memorial In the case where the temperature of the hot water afterwards is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for remembrance,
The time until the water reaches the target temperature from the reference temperature is less than the scheduled time which is the heating time for raising the minimum circulatable water amount that can be predicted in the bathtub by a predetermined temperature corresponding to the additional cooking , and hot water A chasing control method characterized in that chasing is performed again when the temperature of the hot water becomes lower than the target temperature after the circulation is performed for a predetermined time. It is a memorial control device that connects a bathtub and a heater through a circulation path and boils while circulating hot water in the bathtub, and the temperature of hot water before the start of chasing or after a certain time has elapsed from the start of chasing In the case where the temperature of the hot water afterwards is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for remembrance,
A hot water temperature sensor for detecting the reference temperature and the temperature of hot water during memorialization;
A storage unit for recording the reference temperature information;
The reference temperature detected by the hot water temperature sensor is compared with the temperature of the hot water during the chasing, and when the temperature of the hot water during the chasing is lower than the reference temperature, the reference temperature of the storage unit A memory control device comprising: an arithmetic unit that outputs a low reference temperature to the storage unit in order to rewrite the temperature to the low temperature and boil up based on the low reference temperature. It is a memorial control device that connects a bathtub and a heater through a circulation path and boils while circulating hot water in the bathtub, and the temperature of hot water before the start of chasing or after a certain time has elapsed from the start of chasing In the case where the temperature of the hot water afterwards is set as the reference temperature, and the temperature for the increase is added to the reference temperature to obtain the target temperature for remembrance,
A hot water temperature sensor for detecting the reference temperature and the temperature of hot water during memorialization;
A storage unit for recording a scheduled time from the reference temperature to the target temperature and the target temperature;
A calculation unit that compares the temperature of the hot water with the target temperature, and compares the time from the reference temperature to the target temperature with the scheduled time;
The time until the arithmetic unit boils up from the reference temperature to the target temperature is less than a scheduled time which is a heating time for at least a minimum amount of circulatable water that can be expected in the bathtub to rise by a predetermined temperature for additional cooking. And a drive circuit for outputting a memorial signal again when it is determined that the temperature of the hot water has become lower than the target temperature after the hot water has been circulated for a certain period of time. Memorial control device.

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