JP3908871B2 - Bath water heater with hot water hot water function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a hot water supply function that has a hot water tank and supplies hot water to a bathtub and raises the temperature of the bathtub by supplying hot water to the bathtub. .
[0002]
[Prior art]
The block diagram of the bath water heater with a hot water hot water function by a prior art is shown in FIG.
[0003]
The operation of the conventional bath water heater with a high-temperature hot-water supply function composed of the above configuration diagram will be described.
Conventionally, as a means for raising the temperature of bathtub water, in addition to circulating bathtub water and heating it with a heat exchanger, hot water of a certain temperature (for example, 60 ° C.) is newly supplied to the bathtub and mixed with the bathtub water. Some of them raise the temperature. The latter means is called a hot water supply hot water, and a hot water heater having such a function is called a bath water heater with a high temperature hot water function.
[0004]
In the conventional high-temperature hot water supply, when a high-temperature hot water supply command is given via the operation unit 7, as shown in the flowchart of FIG. For example, only a predetermined high temperature hot water temperature Tk (for example, 60 ° C.) or a predetermined high temperature hot water temperature (for example, 10 liters) as shown in the flowchart of FIG. As shown in the flowchart of FIG. 6, the necessary hot water supply amount is calculated so that the bath temperature rises by the set temperature increase width ΔT (for example, 2 ° C. or the like). However, the temperature of the bathtub was raised by means of carrying out at a predetermined high temperature hot water temperature Tk in terms of the necessary high temperature hot water time.
In any case, the hot hot water temperature was one kind of predetermined temperature.
[0005]
[Problems to be solved by the invention]
Therefore, according to the means of the flowchart of FIG. 4 and the flowchart of FIG. 5, it is unclear how much the bath temperature will rise, and will not rise to the temperature expected by the user, or conversely will rise more than necessary.
Moreover, even if the necessary rise, that is, the temperature rise range can be set, the hot hot water supplied with hot water has only one kind (for example, only 60 ° C.), so there is a case where hot water is supplied at a high temperature, so there is a burn. I was worried. Also, it was not the hot water temperature expected by users.
[0006]
The present invention has been made to solve the above-described problems, and the object of the present invention is to use a high temperature hot water supply with a preset temperature increase range of two or more types of high temperature hot water. The object is to provide a bath water heater with a hot water hot water function that can raise the temperature in the bathtub at any hot water temperature.
For example, for use by children and the elderly, the temperature of the hot water bath is set to 60 ° C to prevent burns, and conversely, the temperature of the hot water bath is set to 80 ° C to quickly increase the temperature in the bathtub. It becomes possible to do.
[0007]
[Means for Solving the Problems]
In the bath water heater with a hot water hot water function according to the present invention, a hot water mixing valve for mixing hot water boiled by a heating element of a hot water storage tank and water supplied from a water source, and hot water through the hot water mixing valve. An operation unit that can set two or more types of high-temperature hot-water supply temperatures for supplying hot water to the bathtub is provided, hot water of any two or more types set in the operation unit is supplied to the bathtub, A hot water supply sensor that detects the amount of hot water mixed by the hot water mixing valve is provided to increase the hot water temperature and has a hot water supply function, and stops hot water hot water operation when a predetermined amount of hot water is reached. At the same time, when hot hot water is being supplied to a bathtub at a certain hot hot water temperature, if the hot hot water temperature is changed to another hot hot water temperature, depending on the amount of hot water and the temperature of the hot water at the time of changing the hot hot water temperature to a predetermined bathtub hot water temperature Te And it has a function of correcting the high temperature feed water required amount for.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below.
FIG. 1 is a diagram showing a first embodiment of the present invention.
In FIG. 1, 1 is a water supply pipe A that is supplied to a hot water storage tank 2, 2 is a hot water storage tank for storing hot water or hot water, 3 is a heating element that heats water in the hot water storage tank 2, and 4 is a hot water storage tank 2. Temperature sensors A and 5 attached to the wall surface of the hot water tank in order to detect the temperature of water or hot water are relief valves for releasing the expanded water when the inside of the hot water tank 2 is heated, 6 is a control unit for controlling the system, Reference numeral 7 denotes an operation unit for setting a boiling temperature in the hot water tank 2, a temperature for supplying hot water from the hot water supply pipe 11, and the like.
8 is a hot water supply pipe A for supplying hot water from the hot water tank 2 to the hot water mixing valve 9, 9 is a hot water mixing valve for mixing the water supplied from the water source and the hot water in the hot water tank 2, and 10 is the water supplied from the water source. Water supply pipes B and 11 for supplying hot water to the hot water mixing valve 9 are hot water supply pipes B and 12 for supplying hot water mixed by the hot water and water mixing valve 9 to the bathtub, and temperature for detecting the temperature of the hot water mixed by the hot water and water mixing valve 9 Sensors B and 13 are hot water detection sensors for detecting the amount of hot water in which hot water is flowing through the hot water supply pipe B: 11, and 14 is a switch for flowing hot water into the bathtub.
[0009]
Next, the operation of the first embodiment will be described with reference to the flowchart showing the operation of the first embodiment in FIG.
When the hot water quantity Qy of the bathtub before hot hot water is Qy1 (for example, 100 liters) and the hot water temperature Ty of the bathtub is Ty1 (for example, 40 ° C.), the temperature rise ΔT of the bathtub is changed to ΔT1 ( For example, when the high temperature hot water temperature Tk is set to Tk1 (for example, 60 ° C.) (step S1) and a high temperature hot water operation is instructed (step S2), the necessary high temperature hot water temperature Q ( Q1) is expressed by the following equation (1).
Q1 = (ΔT1 · Qy1) / (Tk1−Ty1−ΔT1) (1)
[0010]
When the required amount Q (Q1) of hot hot water is calculated from the above equation (1) (step S4), Q1 is 11.1 liters.
[0011]
When the high temperature hot water temperature Tk is set to Tk2 (for example, 80 ° C.) (step S1), the required high temperature hot water temperature Q (Q2) is expressed by the following equation (2).
Q2 = (ΔT1 · Qy1) / (Tk2−Ty1−ΔT1) (2)
When the necessary high-temperature hot water supply amount Q (Q2) is calculated from the above equation (2) (step S4), Q2 is 5.3 liters.
[0012]
In this way, the amount of hot water required varies depending on the high-temperature hot water temperature Tk, so that it can be adapted to the user's preference and the amount of hot water required can be changed for the time required for the bath temperature to rise to a predetermined temperature.
The calculated hot-water supply amounts Q1 and Q2 (step S4) stop the hot-water supply function when the amounts of Q1 and Q2 (step S4) are detected by the hot-water detection sensor 13 (step S7) (step S7). S9).
[0013]
In addition, a high temperature hot water hot water operation is commanded at the operation unit 7, and the high temperature hot water temperature TK1 is set to the required high temperature hot water level Q1 while the hot water is being supplied to the bathtub. When it is desired to change the hot hot water temperature during the hot water operation, if the hot hot water temperature is reset to TK2 in the operation unit 7 again (step S3), the temperature of the bathtub is calculated by the following calculation. The required amount can be corrected from Q1 to Q2 (step S6) without changing the increase width ΔT1 (step S8).
[0014]
First, assuming that the hot water supply temperature Tk1 (step S1), the necessary hot water supply amount Q1 (step S4) is as shown in the above equation (1).
While the calculated Q1 is being supplied to the bathtub, when the hot water is supplied to Qx out of Q1, the high temperature hot water temperature is set again from Tk1 to Tk2 in the operation unit 7 (step S3). By supplying hot water to Qx, the bath temperature is increased by ΔTy1.
[0015]
The ΔTy1 is calculated by the following equation (3).
ΔTy1 = {Qx · (Tk1−Ty1)} / (Qy1 + Qx) (3)
At the time when Qx is supplied with hot water, the amount of hot water in the bathtub increases from Qy1 to Qy1 + Qx = Qy2. The bath water temperature rises from Ty1 to Ty1 + ΔTy1 = Ty2.
As a result, the remaining temperature increase range is ΔT1 to ΔT1−ΔTy1 = ΔT2.
[0016]
Accordingly, the necessary high temperature hot water amount Q2 is recalculated by resetting the high temperature hot water temperature to Tk2 again in the operation unit (step S5).
Q2 = (ΔT2 ・ Qy2) / (Tk2−Ty2−ΔT2) (4)
And the required high-temperature hot-water supply amount is corrected by the equation (4) (step S6), and the temperature increase width ΔT1 can be performed without change (step S8).
[0017]
Further, even if the setting of the high temperature hot water temperature Tk is changed by the operation unit 7 many times (step S3), the required high temperature hot water temperature Q is changed (step S6), but the temperature rise width ΔT. In (Step S8), it becomes possible to perform hot water supply of hot water without changing.
The calculated required hot hot water quantity Q can stop the hot hot water hot water function (step S9) when the hot water quantity detection sensor 13 detects the hot water quantity of Q (step S7).
[0018]
According to Embodiment 1 of the present invention, the operation unit 7 has a function that allows the hot water supply temperature to be set to two or more kinds of temperatures Tk1, Tk2, etc. When the temperature is increased, a hot water supply hot water can be supplied to the bathtub at the temperature and time expected by the user, and a bath water heater with a high temperature hot water function can be provided with improved usability.
[0019]
Also, a hot water detection sensor 4 for detecting the amount of hot water mixed by the hot water mixing valve is provided, and when the predetermined hot water amount Q (Q1, Q2) is reached, the hot water supply operation is stopped. When the temperature of the bathtub is raised by the means, it is possible to provide hot water supply to the bathtub more reliably at the temperature and time expected by the user, and it is possible to provide a bath water heater with a high temperature hot water function that further improves usability.
[0020]
Further, when hot hot water is being supplied to a bathtub at a certain high temperature hot water temperature, for example, Tk1, and the hot hot water temperature is changed to another high temperature hot water temperature, for example, Tk2, the high temperature hot water to obtain a predetermined bath water temperature. Since it has a function to correct the required amount Q from the amount of hot water Q1 to the amount of hot water Q2, when the temperature of the bathtub is raised by the hot water supply means, the hot water supply to the bathtub can be reliably supplied at the temperature and time expected by the user. Thus, it is possible to provide a bath water heater with a hot water hot water function that is further improved in usability.
[0021]
【The invention's effect】
According to the present invention, the hot water detection sensor that detects the amount of hot water mixed by the hot water mixing valve is provided, and when the predetermined amount of hot water is reached, the hot hot water hot water operation is stopped, and the hot hot water hot water is heated at a certain high hot water temperature. When the hot water supply temperature is changed to another high temperature hot water temperature while the hot water is being supplied to the bathtub, the temperature is high so that the bath water temperature reaches the predetermined temperature depending on the amount of hot water and the temperature of the hot water Since it has a function to correct the required amount of hot water, when the temperature of the bathtub is raised by hot hot water supply means, the hot hot water temperature is changed while supplying hot hot water to the bathtub at the temperature and time expected by the user. also enables proper and reliable high temperature feed water hot water into the bathtub by the high temperature feed water required amount according to the bathtub hot water and bath water temperature at a high temperature feed water temperature changes time when a high temperature feed usability is improved It is possible to provide a function with the bath water heater.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a bath water heater with a high-temperature hot water function showing an embodiment according to the present invention.
FIG. 2 is a flowchart showing the operation of the bath water heater with a high-temperature hot water function showing an embodiment according to the present invention.
FIG. 3 is a configuration diagram of a bath water heater with a hot water hot water function showing the prior art.
FIG. 4 is a flowchart showing the operation of a bath water heater with a high temperature hot water function showing the prior art.
FIG. 5 is a flowchart showing the operation of a bath water heater with a high temperature hot water function showing the prior art.
FIG. 6 is a flowchart showing the operation of a bath water heater with a high temperature hot water function showing the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water supply pipe A, 2 Hot water storage tank, 3 Heating body, 4 Temperature sensor A, 5 Relief valve, 6 Control part, 7 Operation part, 8 Hot water supply pipe A, 9 Hot water mixing valve, 10 Water supply pipe B, 11 Hot water supply pipe B, 12 Temperature sensor B, 13 Hot water amount detection sensor for detecting the amount of hot water by detecting the flow of hot water, 14 Switch.

Claims (1)

Hot water mixing valve that mixes hot water boiled by the heating element of the hot water storage tank and water supplied from the water source, and hot hot water supply temperature that supplies hot water to the bathtub via the hot water mixing valve is two or more kinds of temperatures A hot water supply hot water supply function for supplying hot water of any two or more types set in the operation part to the bathtub and raising the temperature of the bathtub. A hot water detection sensor that detects the amount of hot water mixed by the hot water mixing valve, stops hot water hot water operation when a predetermined amount of hot water is reached, and places hot water in the bathtub at a certain hot water temperature. During the supply, if the hot hot water temperature is changed to another hot hot water temperature, the hot water hot water is required to reach the predetermined hot water temperature according to the amount of bath water and the temperature of the hot water. Has a function to correct the amount High temperature feed hot water function with the bath water heater, wherein the door.

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