JPS61211663A - Automatic bath water additionally heating device - Google Patents

Abstract

PURPOSE:To make it possible to heat water in a bathtub to a suitable temperature by providing a temperature detector operating means for stopping circulation of water at a predetermined temperature and a timer for detecting the temperature of hot water in the bathtub by using the temperature detector to set the additionally heating time. CONSTITUTION:In a case where a preferable temperature is set by a bath controller 15 and a switch 15b is turned ON, when the temperature of a temperature detector 13 is 35 deg.C or less, the bath water is heated up to a preset temperature. Further, when the temperature of the temperature detector 13 is 35 deg.C or more, an electric circuit 12a detects it and a timer 12b operates by the temperature of the bathtub water and heats hot water within the bathtub 4 up to a suitable temperature. That is, since when the temperature of hot water within the bathtub 4 is different from the suitable temperature, the time required for heating the bathtub water up to the suitable temperature is different, and hence the time mating with the temperature is set. For example, when the temperature of the temperature detector 13 is 38 deg.C or more and 39 deg.C or less, the bathtub water is forcibly heated for 10 minutes. In this case, the suitable temperature of the bathtub water is considered to be 42 deg.C and the timer is set to this value.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to gas heaters, gas hot water heaters, etc. as a heat source.
Then, using a bath heater heated by this heat source,
This paper relates to the development of a device that automatically boils a bath.

2. Prior Art The construction of a conventional bath reheating device of this type is as shown in Fig. 3. 1 is a tank for replenishing circulating water, and 2 is a heat exchanger for heating the circulating water. A pump 3 circulates circulating water, and is provided between the heat exchanger 2 and the tank 10. 4 is a bathtub, and a bath heater 5 is attached to the bathtub 4. The bus heater 5 is
It is fixed to the bathtub 4 from the inside of the bathtub 4 by a connection screw 86 and a connection screw B7, and a connection screw 6.
Bathtub water in the bathtub 4 is circulated through the tube 7 as shown by the arrow. Further, a heat exchange coil/L/8 is attached inside the bus heater 5, and is connected to the tank 1 and the heat exchanger 2 by a pipe 10 such as a steel pipe provided with a heat insulating material on the outer periphery. Reference numeral 12 denotes a control device, and reference numeral 13 denotes a temperature detector, which is attached to the surface of the bath heater 50 at a location where the temperature is the same as the average water temperature of the bathtub 4. 14 is a shaft arai installed in the middle of the pipe 10 leading from the heat exchange coil/I/8 to the heat exchanger 2. 15 is a bath controller connected to the Arai 14 and the electric circuit 12a of the control device 12.

Next, its operation will be explained. The hot water heated in the heat exchanger 2 is pushed out by the pump 3, and is pumped out through the pipe 1.
0, the heat exchange coil in the bath heater 5) Vf3
cycle. At this time, heat is exchanged with the bathtub water filled in the bath heater 5.

The heated bathtub water floats to the top and flows into the bathtub 4 through the connecting screw 86, and at the same time, the bathtub water flows into the bath heater 5 through the connecting screw B7 and displaces the bath. When the desired temperature is set with the bath controller 15, when the temperature detector 13 attached to the surface of the bath heater 5 reaches the set temperature, it detects this and notifies the electric circuit 12a in the control device 12. By activating the shield well 14, the hot water flowing through the pipe 10 is shut off and the recharging is stopped. At this point, stirring the hot water in the bathtub 4 will bring it to the desired temperature (set water temperature).

Problems to be Solved by the Invention In such a purchased product, the initial temperature of the bathtub 4 is 5°C to 35°C.
℃, the surface temperature A of the bath heater 5 to which the temperature detector 13 is attached as shown in FIG.
It is possible to boil to the desired temperature set in step 5. In this case, the amount of water in the bathtub 4, the installation position of the bath heater 5, and the outside temperature are hardly affected. However, when the initial water temperature of the bathtub 4 is 35° C. or higher, this corresponds to the case where the water that has been boiled for a bath is boiled again after a certain period of time, as shown in FIG.

There is a considerable temperature difference between the surface temperature A' of the bath heater 5 to which the temperature detector 13 is attached (hereinafter referred to as the temperature of the temperature detector 13) and the average hot water temperature B' of the bathtub 4. Therefore, even if the bathtub water temperature is set to 43°C after stirring, as in the case where the initial water temperature is 5°C to 35°C, the temperature of the temperature sensor 13 will reach 43°C after 7 hours. However, if you hide the bathtub, the temperature will rise to 49℃. Further, immediately after the start of reheating, the temperature of the temperature detector 13 rises rapidly. (A in Figure 5
Therefore, even if you set the water temperature after stirring the bathtub to 41°C in the same way as when the initial water temperature is 5°C to 35°C, the water temperature after stirring the bathtub will be set to 41°C, but the temperature will not reach The set temperature is reached and the boiling stops. At this time, when the bathtub is stirred, it is only heated to 37 degrees Celsius. In other words, when pouring water into the bathtub 4 from the tap and boiling the bath for the first time, the bath controller 15
If you set the temperature to the appropriate temperature and then boil it again after a certain amount of time has passed, setting the temperature to the same temperature has the disadvantage that you will not be able to get the water temperature to your liking. It was very inconvenient for people. All of the above have been experimentally confirmed.

Means for Solving the Problems Technical means of the present invention for solving the above problems are as follows:
The Kibanu heater is equipped with a temperature detector that operates the means for stopping the circulating water at a certain temperature, and a timer that detects the temperature of the water in the bathtub using the temperature detector and sets a refilling time. It is prepared.

For production The effect of this technical means is as follows.

If the initial water temperature of the bathtub is 35℃ or higher, that is, even if the water is boiled to the appropriate temperature and then boiled again after a certain period of time, the temperature sensor detects the temperature of the bathtub water and activates the timer automatically. It can be heated to the appropriate temperature.

As a result, once you set the bath controller to your desired water temperature, no matter what the bath water temperature is,
It can automatically boil a bath, and just stir it to get it to the right temperature.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

Note that the same parts as in the above conventional example are given the same reference numerals, detailed explanations are omitted, and only the different parts will be explained. In FIG. 1, 12a is a conventional electrical circuit provided within the control device 12, and 12b is its timer.

Next, its operation will be explained. bath controller 1
When the desired temperature is set in step 5 and the switch 15b is turned on, if the temperature of the temperature detector 13 is 36° C. or lower, the boiling is continued until the set temperature is reached. Further, when the temperature is 35° C. or higher, the electric circuit 12a detects this and the timer 12b is activated depending on the temperature of the bathtub water to boil the water in the bathtub 4 until it reaches an appropriate temperature. In other words, if the temperature of the water in the bathtub 4 is different, the time required to heat the water to the appropriate temperature will also be different, so the time is set to match the temperature.

FIG. 6 shows timer setting times that have been experimentally confirmed. For example, if the temperature of the temperature detector 13 is 38°C or higher,
If the temperature is less than 9°C, it will be forced to burn for 10 minutes.

In this case, the timer is set considering that the appropriate temperature of the bath water is 42°C.

Next, other embodiments of the present invention will be described.

FIG. 2 shows another embodiment. The electric circuit 12a and timer 12b, which were provided in the control device 12 in the appliance main body to control the heating of the bath, are installed in the bath controller 15, and the bath controller 1
It may be controlled within 5.

As another embodiment, if the initial water temperature of the bathtub is 35° C. or higher, a timer may be operated for a certain period of time, for example, 10 minutes, to force combustion.

Effects of the Invention The present invention provides a timer in the control device, thereby achieving
If the initial water temperature of the bathtub is high, this will boil the bath once,
This corresponds to boiling the bath again after several hours have passed, but even in this case, the bath is automatically boiled and stirred to bring it to the appropriate temperature.

Once you set the desired temperature using the bath controller, you can boil the water to the appropriate temperature even if the water temperature in the bathtub changes, preventing wasted water due to overboiling and saving the user's time and effort. .

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an automatic bath flushing device according to one embodiment of the present invention, FIG. 2 is a system diagram of an automatic bath flushing device according to another embodiment of the present invention, and FIG. 3 is a system diagram of a conventional automatic bath flushing device. Fig. 4 is a vertical cross-sectional view of the main part of the device, and the initial water temperature of the bathtub (time O
Figure 5 shows the relationship between the average water temperature of the bathtub when the water is boiled from a low temperature (temperature at time 0) to the temperature measured by the temperature sensor and time. that's all)
Figure 6 is a graph of the same temperature when the water is boiled from 100 to 100 degrees Celsius, and Figure 6 shows the catch-up time by the timer in one embodiment of the present invention.In other words, when the initial water temperature is 35 degrees Celsius or higher, the average water temperature in the bathtub is boiled to 42 degrees Celsius. This is a graph of the time required. 1...Tank, 2...Heat exchanger, 3.
...Pump, 4...Bathtub, 5...
・Bath heater, 10...Pipe, 12...
...control device, 12a...electric circuit, 12b...
...Timer, 13...Temperature detector, 1
4...Sharai (means), 15...Fu/Ro controller. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 4
Figure @ 5 Figure'Ding' Ding Special Publication

Claims (1)

[Claims] A tank for replenishing circulating water, a heat exchanger connected to this tank to heat the circulating water, a bath heater connected to this heat exchanger to boil a bath using circulating water, and this bath heater installed. A bathtub in which bathwater is heated by the bath heater, a circulation pump installed in a circulating water circulation pipe connecting the heat exchanger and the bath heater, and a circulation pump installed in the bath heater to heat the circulating water at a predetermined temperature. An automatic bath refilling device comprising: a temperature detector for activating means for stopping the bath; and a timer for detecting the temperature of water in the bathtub using the temperature detector and setting a refilling time.