JP2001082797A - Automatic hot water filling apparatus for bath - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine a hot water filling quantity at the time of automatic hot water injection by closing a hot water injection solenoid valve during automatic hot water filling operation and storing the water level in a bathtub in a storing section when a water quantity sensor detects no hot water delivery from a faucet connected with a hot water supply heat exchanger thereby storing the water level in the bathtub accurately. SOLUTION: When a hot water injection solenoid valve 9 is switched to the bath side at the time of automatic hot water filling operation of a bath, water from incoming side is passed through a hot water supply heat exchanging pipe 6 and subjected to heat exchange in a hot water supply heat exchanger 1 heated by a hot water supply combustor 4. Consequently, automatic hot water filling operation of a bathtub 10 is carried out through the hot water injection solenoid valve 9. The hot water injection solenoid valve 9 is closed after the bathtub 10 is filled with hot water for a predetermined time, and hot water delivery is detected by a water quantity sensor 8 based on the water level 11 of a hot water supply heat source machine when a water level sensor 12 is measuring the water level. When hot water delivery from a faucet 11 of the hot water supply heat source machine is not detected, the bathtub 10 has been filled with a correct quantity of hot water and that water level is stored at a storing section 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bath hot water filling apparatus capable of accurately storing a water level value in a bathtub and obtaining an amount of hot water during automatic pouring.

[0002]

2. Description of the Related Art Conventionally, the configuration inside a water heater has a structure as shown in FIG. By switching the pouring solenoid valve 9 to the bath side at the time of automatic hot water filling or bath trial operation, water from the water inlet side passes through the inside of the hot water supply heat exchange pipe 6 and is heated by the hot water supply combustion device 4. The heat was exchanged by the hot water supply heat exchanger 1 and the hot water was supplied to the bath tub 10 through the pouring solenoid valve 9.

At the time of pouring, first water quantity sensor 8 is used.
Further, by using the water level sensor 12, the water level value is calculated, and the water level value is stored in the storage unit 15 by learning the area value in the bathtub. In addition, at the time of bath hot water pouring, if there is a hot water supply from the faucet 11 of the hot water supply heat source device other than hot water pouring, the first water amount sensor 8 detects the water amount, and the second water amount sensor 14 By applying hot water with the correct amount of water in the bathtub 10, the correct water level value was measured, and the area value in the bathtub was calculated and stored. Again, at the time of bath automatic hot water filling, hot water filling was performed with the stored water level as a target, and hot water filling was performed faster and more accurately than at the time of the first bath automatic hot water filling.

[0004]

However, in the prior art, unless two water amount sensors are provided, the amount of hot water from the faucet 11 or the like of the hot water supply heat source unit cannot be detected, and the correct water level value cannot be detected. In order to store the information, there is a problem that the control is complicated and the cost is increased. When only one first water amount sensor 8 is provided, the wrong water level value is stored in the storage unit by the amount of hot water from the faucet 11 or the like of the hot water supply heat source unit. At the time of hot water, the amount of water for the amount of hot water except hot water pouring is calculated by adding the amount of water, and the bath tub 10 has the problem of pouring less than the actual flow rate and pouring less than the actual flow rate. I was

[0005]

In order to solve the above-mentioned problems, the present invention provides a hot water supply heat exchange pipe 6 having a structure for flowing water therein, and a heat exchange pipe for heating having a structure for flowing water therein. A pipe, a hot water supply heat exchanger 1 for exchanging heat of the hot water supply heat exchange pipe, a heating heat exchanger for exchanging heat of the heating heat exchange pipe, and a fuel supply to a lower portion of the hot water supply heat exchanger by fuel supply. A hot water supply combustion device, a heating combustion device capable of burning the lower part of the heating heat exchanger by fuel supply, and a hot water supply device in which water from a water inlet side is heat-exchanged by the hot water supply heat exchanger. Pouring solenoid valve 9 that switches to the bath, a bath heat exchanger that indirectly exchanges heat with the heating heat exchange pipe, and a water amount sensor that detects the amount of water from the water inlet side. Close the water volume Only when it is detected that there is no hot water amount from the faucet or the like connected to the hot water supply heat exchanger by Nsa, in which so as to store the water level value of the bath tub in the storage unit.

According to the above-mentioned invention, even when the configuration is such that there is only one water amount sensor, only when there is no hot water supply from the faucet, etc. of the heat source unit other than hot water filling during bath automatic hot water filling. Since the water level value is stored in the storage unit, the correct water level value can be stored, and when the bath is automatically filled with hot water again, it is repeatedly poured into the bath tub with a lower flow rate than the actual flow rate. Can be prevented.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 comprises a heat exchange pipe 6 for hot water supply provided with a structure for flowing water therein, and a heat exchange pipe 7 for heating provided with a structure for flowing water therein. Hot water supply heat exchanger 1 that performs heat exchange of hot water supply heat exchange pipe 6
A heating heat exchanger 2 for exchanging heat with the heating heat exchange pipe 7; a hot water supply combustion device 4 capable of burning fuel by supplying fuel to a lower portion of the hot water supply heat exchanger 1; Indirect heat exchange with a heating combustion device 5 capable of burning by supply, a pouring solenoid valve 9 for switching water from the inlet side to hot water heat exchanged by the hot water supply heat exchanger 1 to the bath side, a heating heat exchange pipe 7, and the like. With the configuration of the bath heat exchanger 3 to be heated and the water amount sensor 8 held in the hot water supply heat source device for detecting the amount of water from the water inlet side, the pouring electromagnetic valve 9 is automatically supplied to the bath tub 10 via the hot water supply heat source device during hot water filling. Automatically storing the water level value of the bath tub in the storage unit 15 only when the water amount sensor 8 held only in the hot water supply heat source unit detects that there is no hot water from the faucet 11 or the like of the hot water supply heat source unit. Bath It is a tension device.

According to the above-mentioned invention, even when only one water amount sensor 8 is provided, the amount of hot water from the faucet 11 of the hot water supply heat source unit other than the hot water pouring during the automatic hot water filling is not limited. Even in the case where the water level is not stored in the storage unit 15, the bathtub 10
It is possible to prevent the inside of the tank from being repeatedly poured with a lower flow rate than the actual flow rate. Even if the storage is not performed, the water level value is stored in the storage unit 15 when the bath automatic hot water pouring is performed next time and when there is no hot water supply from the faucet 11 of the hot water supply heat source unit other than hot water pouring. After the water level value is stored in the storage unit 15, the hot water filling is performed with the stored water level value as a target, which is faster and more accurate than the bath automatic hot water filling when the water level value is not in the storage unit 15. Can be covered with hot water.

According to the second aspect of the present invention, there is provided a heat exchange pipe for hot water supply having a structure for flowing water therein, a heat exchange pipe for heating having a structure for flowing water therein, and a heat exchange pipe for hot water supply. A hot water supply heat exchanger 1 for exchanging heat of the pipe 6, a heating heat exchanger 2 for exchanging heat of the heating heat exchange pipe 7,
A hot water supply combustion device 4 that can be burned by fuel supply at a lower portion of the hot water supply heat exchanger 1, a heating combustion device 5 that can be burned by fuel supply at a lower portion of the heating heat exchanger 2, and water from the water inlet side. Pouring solenoid valve 9 for switching hot water heat exchanged by heat exchanger 1 to the bath side, bath heat exchanger 3 for indirect heat exchange with heating heat exchange pipe 7, and hot water supply heat source unit for detecting the amount of water from the inlet side Water sensor 8
With the configuration of the above, the pouring solenoid valve 9 is closed during automatic hot water filling in the bath tub 10 through the hot water supply heat source unit, and the water amount sensor 8 held only in the hot water supply heat source unit allows the water tap 11 of the hot water supply heat source unit to be closed. Only when it is detected that there is no hot water supply, the water level value of the bath tub is stored in the storage unit 15 so that the pouring valve is closed during the automatic bath hot water filling and only one water quantity sensor is held in the hot water supply heat source unit. When the amount of hot water from the faucet or the like of the hot water supply heat source is detected, the water level is finely adjusted after pouring the hot water to the set water level.

According to the above-mentioned invention, even when only one water amount sensor 8 is provided, the amount of hot water from the faucet 11 of the hot water supply heat source unit other than the hot water filling during the automatic hot water filling is not limited. Even in the case where the water level is not stored in the storage unit 15, the bathtub 10
It is possible to prevent the inside of the tank from being repeatedly poured with a lower flow rate than the actual flow rate. Even if the storage is not performed, the water level value is stored in the storage unit 15 when the bath automatic hot water pouring is performed next time and when there is no hot water supply from the faucet 11 of the hot water supply heat source unit other than hot water pouring. After the water level value is stored in the storage unit 15, the hot water filling is performed with the stored water level value as a target, which is faster and more accurate than the bath automatic hot water filling when the water level value is not in the storage unit 15. When the bath is filled with water and the bath is automatically filled with hot water, if the water level is lower than the set water level, after pouring to the set water level, the water level is fine-adjusted to provide a stable bath automatic hot water level. Can be.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a configuration diagram of an automatic bath and hot water filling apparatus according to Embodiment 1 of the present invention. FIG. 2 is a flowchart for storing a water level value of the automatic bath / hot water filling apparatus according to the first embodiment of the present invention.

In the figure, the water from the water inlet side passes through the inside of the hot water supply heat exchange pipe 6 by switching the pouring solenoid valve 9 to the bath side during normal bath automatic hot water filling or during the bath trial operation. , Heated by the hot water supply combustion device 4,
The heat is exchanged by the hot water supply heat exchanger 1, and the hot water is supplied to the bath tub 10 through the pouring solenoid valve 9. Also, after filling the bathtub 10 with hot water for a certain period of time, the pouring solenoid valve is closed, and while the water level is measured by the water level sensor 12, the amount of hot water from the faucet 11 or the like of the hot water supply heat source unit is determined. When the water level sensor 8 detects that there is no hot water from the faucet 11 or the like of the hot water supply heat source unit, the water level of the hot water in the bath tub 10 is the correct water level and the water level value is set. The information is stored in the storage unit 15. In addition, faucet 11 of hot water supply heat source machine
When it is detected that there is a hot water amount from the water bath, the water level value of the bath tub 10 is not stored in the storage unit 15 because the water amount measured by the water amount sensor is not a correct water amount. Therefore, the next time the bath is automatically filled with hot water, the water level value is stored in the storage unit 15 only when the correct amount of water is filled, so that the shape of the bathtub 10 can be accurately stored.

If there is a hot water supply other than the automatic hot water filling, the water level value is not stored. Therefore, the hot water is poured into the bathtub 10 by an incorrect water level value, and the flow rate is lower than the actual flow rate. It is possible to prevent repetition of doing so.

Even if the storage is not performed, after the next time, when the bath is automatically filled with hot water, after filling the bath tub 10 with water for a certain period of time, the pouring solenoid valve is closed, and the water level sensor 12 controls the water level. During the measurement, the amount of hot water from the faucet 11 or the like of the hot water supply heat source device is detected by the water amount sensor 8,
By repeatedly detecting that there is no hot water amount from the faucet 11 or the like of the hot-water supply heat source unit, if there is no hot water amount, the amount of hot water filled in the bathtub 10 is the correct water amount, so the water level value Is stored in the storage unit 15.

If it is detected that there is hot water from the faucet 11 or the like of the hot water supply heat source unit, the water level measured by the water level sensor is not a correct water level, and the water level value of the bathtub 10 is stored in the storage unit 15. Do not remember. This operation is repeatedly performed at the time of automatic hot water filling until the correct water level value is stored.

Further, after the water level value is stored in the storage unit 15, the hot water filling is performed with the stored water level value as a target, which is faster and more accurate than when the bath is automatically filled with hot water when the water level value is not in the storage unit 15. Can be covered with hot water.

(Embodiment 2) FIG. 3 is a configuration diagram of an automatic bath hot water filling apparatus according to Embodiment 2 of the present invention. FIG. 2 is a flowchart for storing a water level value of the automatic bath / hot water filling apparatus according to the first embodiment of the present invention.

In the figure, the water from the water inlet side passes through the inside of the hot water supply heat exchange pipe 6 by switching the pouring solenoid valve 9 to the bath side during the normal bath automatic hot water filling or during the bath trial operation. , Heated by the hot water supply combustion device 4,
The heat is exchanged by the hot water supply heat exchanger 1, and the hot water is supplied to the bath tub 10 through the pouring solenoid valve 9.

After filling the bathtub 10 with hot water for a certain period of time, the pouring solenoid valve is closed, and while the water level is measured by the water level sensor 12, the amount of hot water from the faucet 11 or the like of the hot water supply heat source unit. Is detected by the water sensor 8 and when it is detected that there is no hot water from the faucet 11 or the like of the hot water supply heat source unit, the water level of the hot water in the bathtub 10 is stored as the correct water quantity. The information is stored in the unit 15. When it is detected that there is hot water from the faucet 11 or the like of the hot water supply heat source unit, the water level measured by the water level sensor is not a correct water level, so the water level value of the bathtub 10 is not stored in the storage unit 15. .

Therefore, the next time the bath is automatically filled with hot water, the water level value is stored in the storage unit 15 only when the correct amount of water is filled, so that the shape of the bathtub 10 can be stored accurately.

If there is a hot water supply other than the automatic hot water filling, the water level is not stored. Therefore, the hot water is poured into the bath tub 10 by an incorrect water level, and the flow rate is lower than the actual flow rate. It is possible to prevent repetition of doing so.

Even if the storage is not performed, after the next time, when the bath is automatically filled with hot water, after filling the bath tub 10 with water for a certain period of time, the pouring solenoid valve is closed, and the water level sensor 12 controls the water level. During the measurement, the amount of hot water from the faucet 11 etc. of the hot water supply heat source unit is detected by the first water amount sensor 8, and it is repeatedly detected that there is no hot water amount from the faucet 11 etc. of the hot water supply heat source unit. If there is no hot water supply amount, the water level value stored in the bathtub 10 is stored in the storage unit 15 since the water amount is the correct water amount.

If it is detected that there is hot water from the faucet 11 or the like of the hot water supply heat source unit, the water level measured by the water level sensor is not a correct water level, and the water level value of the bathtub 10 is stored in the storage unit 15. Do not remember. This operation is repeatedly performed at the time of automatic hot water filling until the correct water level value is stored.

Further, after the water level value is stored in the storage unit 15, the hot water filling is performed with the stored water level value as a target, which is faster and more accurate than when the bath is automatically filled with hot water when the water level value is not in the storage unit 15. Can be covered with hot water.

Also, by providing a structure for finely adjusting the water level after pouring the hot water to the set water level, an incorrect water level value corresponding to the amount of hot water from the faucet 11 or the like of the hot water supply heat source at the time of automatic hot water pouring of the bath. Is stored in the storage unit 15, or when the water level in the bathtub 10 is lower than the target water level, pouring the water to the set water level, finely adjusting the water level, and pouring when the water level is not enough to reach the target water level. Thereby, a stable bath automatic hot water filling water level can be supplied.

[0027]

As described above, the present invention has the following advantageous effects.

(1) Conventionally, the water level value of the bath tub at the time of automatic hot water filling can be accurately stored by holding only one water amount sensor conventionally required in the hot water supply heat source unit. With the configuration described above, cost can be reduced and control can be simplified.

(2) Even if the configuration is such that only one water volume sensor is provided, if the amount of hot water from the faucet of the hot water supply heat source unit is not detected by the water volume sensor at the time of automatic hot water filling, When the water level value of the bathtub is stored and the amount of hot water is detected by the water level sensor, the water level value of the bathtub is not stored, so the water level value is stored only when the correct amount of water is filled. The shape of the bathtub can be stored accurately.

(3) Even if the configuration is such that only one water amount sensor is provided, if the amount of hot water from the faucet of the hot water supply heat source unit is not detected by the water amount sensor during the automatic hot water filling, When the water level value of the bathtub is stored and the amount of hot water is detected by the water level sensor, the water level value of the bathtub is not stored, so the water level value is stored only when the correct amount of water is filled. Stable and accurate bath automatic hot water filling with a configuration that can accurately memorize the shape of the bathtub, and after pouring the bath automatic hot water, pouring it to the set water level if it is lower than the set water level and then fine-adjusting the water level Water level can be supplied.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an automatic bath and hot water filling apparatus according to first and second embodiments of the present invention.

FIG. 2 is a flowchart for storing a water level value of the automatic bath / hot water filling apparatus according to the first embodiment of the present invention.

FIG. 3 is a flowchart for storing a water level value of the automatic bath / bath filling device according to the second embodiment of the present invention.

FIG. 4 is a configuration diagram of a conventional automatic bath hot water filling apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water supply heat exchanger 2 Heating heat exchanger 3 Bath heat exchanger 4 Hot water supply combustion device 5 Heating combustion device 6 Heat exchange pipe for hot water supply 7 Heat exchange pipe for heating 8 Water volume sensor 9 Pouring solenoid valve 10 Bath tub 12 Water level sensor 13 Bath circulation pump 15 storage unit

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takanori Uemura 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (Reference) 3L024 CC09 DD06 DD12 DD17 DD27 DD37 EE12 GG12 GG24 HH03 HH13

Claims (2)

[Claims] 1. A hot water supply heat exchange pipe, a heating heat exchange pipe, a hot water supply heat exchanger connected to the hot water supply heat exchange pipe, and a heating heat exchanger connected to the heating heat exchange pipe. A hot water supply combustion device provided at a lower portion of the hot water supply heat exchanger, a heating combustion device provided at a lower portion of the heating heat exchanger, and pouring of hot water exchanged by the hot water supply heat exchanger to a bath side. A solenoid valve, a bath heat exchanger for indirect heat exchange with the heating heat exchange pipe, a water level sensor for detecting a water level in the bath tub, a storage unit for storing a water level value from the water level sensor, and a A bath circulation pump for circulating water, and a water amount sensor for detecting an amount of water entering the hot water supply heat exchanger, closing the pouring solenoid valve during automatic hot water filling, and the water supply sensor allows the hot water supply heat exchanger to be closed. Of hot water Automatic bath water tensioning device for storing the water level value of the bath tub in the storage unit when detecting that no. 2. A hot water supply heat exchange pipe, a heating heat exchange pipe, a hot water supply heat exchanger connected to the hot water supply heat exchange pipe, and a heating heat exchanger connected to the heating heat exchange pipe. A hot water supply combustion device provided at a lower portion of the hot water supply heat exchanger, a heating combustion device provided at a lower portion of the heating heat exchanger, and pouring of hot water exchanged by the hot water supply heat exchanger to a bath side. A solenoid valve, a bath heat exchanger for indirect heat exchange with the heating heat exchange pipe, a water level sensor for detecting a water level in the bath tub, a storage unit for storing a water level value from the water level sensor, and a A bath circulation pump for circulating water, and a water amount sensor for detecting an amount of water entering the hot water supply heat exchanger, closing the pouring solenoid valve during automatic hot water filling, and the water supply sensor allows the hot water supply heat exchanger to be closed. Of hot water After the hot water clad pouring up to the set water level in the case of detecting the Rukoto, automatic bath hot water tensioning device for the water level fine-tuning.