JPS622447Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to an automatic hot water bath device that brings hot water heated by a water heater down to the set water level of the bathtub, and then heats the water uniformly to the desired temperature without any difference in temperature above or below. The purpose is to provide a bath kettle that is easy to operate and extremely convenient.

Conventional technology A conventional automatic hot water bath device is, for example,
As shown in Publication No. 101941, at the beginning of hot water supply from the water heater, hot water should only flow directly into the circulation pot.
Moreover, after the hot water is supplied into the bathtub to the position of the upper circulation pipe of the circulation pot, the bathtub becomes a normal circulation type bathtub, and when the temperature of the bathtub water reaches a predetermined temperature or higher, combustion is stopped, and when the bathtub water temperature reaches a predetermined temperature or lower, When it becomes, combustion starts,
Furthermore, the hot water supply to the bathtub is stopped at a set water level.

Problems that the invention aims to solve: However, in conventional devices, after hot water is supplied to the upper circulation pipe, it becomes a normal circulating bath pot and burns, resulting in uneven water temperature in the bathtub and stirring during bathing. The problem was that it needed to be done.

Means for Solving the Problems In order to solve the problems, the present invention includes an instantaneous water heater, a circulation pump, and a forced circulation bath heater equipped with a bath burner installed side by side within the main body of the automatic hot water supply bath pot. The bath heater is equipped with a water temperature detector that detects the water temperature in the bathtub and a water level switch that operates at the set water level of the bathtub, and when the water level switch operates, the circulation pump is rotated and the bath burner is burned, and the water temperature is further adjusted. When the detector detects the set water temperature, the rotation of the circulation pump and the combustion of the bath burner are interlocked.

Function The circulation pump rotates while the bath burner is burning.
Since the inside of the bathtub is stirred, it can be heated evenly without any temperature difference between the top and bottom.

Embodiment To explain this with reference to the illustrated embodiment, reference numeral 1 mainly consists of an automatic hot water supply bath pot, in which a stop-start type instantaneous water heater 2 and a forced circulation bath heater 3 are arranged side by side. The water heater 2 is equipped with a heat exchanger 4 for hot water supply and a burner 5 for heating hot water. When a water flow switch 7 installed in a water supply pipe 6 leading to the heat exchanger 4 detects water flow, an electrical control Gas solenoid valve 1 for hot water supply provided in gas path 9 to burner 5 when circuit 8 operates
0 is opened, and at the same time, an appropriate ignition device is activated to start combustion. This constitutes an instant water heating device. 11
12 is a hot water temperature detector installed in the hot water supply pipe 13 led out from the heat exchanger 4; 14 is a gas proportional control valve installed in the gas path 9; The amount of combustion gas is adjusted so that the hot water temperature detected by the detector 12 is maintained at the set value. The forced circulation bath heater 3 has upper and lower circulation pipes 16 and 17 connected to the bathtub 15.
It has a bath heat exchanger 18 that communicates with the bath heat exchanger 18, a bath burner 19 that heats the bath heat exchanger 18, and a circulation pump 22 that has a discharge pipe 20 and a suction pipe 21 inserted in the two circulation pipes 16 and 17, respectively, in a double pipe shape. A forced circulation device 23 is provided. Reference numeral 24 designates a bath gas solenoid valve disposed in a gas passage 25 leading to the bath burner 19 in parallel with the gas passage 9. The tip of the hot water supply pipe 13 is extended to a hot water supply pipe 26, and a bath hot water supply pipe 27 that communicates with the inside of the bath heat exchanger 18 is branched from the middle of the hot water supply pipe 26 inside the main body 1.
7 is provided with an open tank 28 to prevent backflow. Further, a hot water supply solenoid valve 29 is provided on the upstream side of this tank 28 in the bath hot water supply pipe 27. 3
0 is a float type or water pressure detection type water level switch that communicates with the bath heat exchanger 18 to detect the water level of the bathtub 15, and 31 is a water temperature detector inserted into the suction pipe 21. The hot water supply solenoid valve 29, the water level switch 30, the bath gas solenoid valve 24, the hot water temperature detector 31, and the pump 22 are such that when the water level switch 30 is activated, the hot water supply solenoid valve 29 is closed and the gas solenoid valve 24 is closed.
is opened, the pump 22 further rotates, and when the hot water temperature detected by the hot water temperature detector 31 reaches the set temperature, the gas solenoid valve 24 is closed, combustion is stopped, and the pump 22 is also stopped. It is electrically linked to 8. Reference numeral 32 denotes an operating device equipped with an automatic operation switch 33 that is operated when automatically using the bath.

The present invention has such a configuration, and its operation will be explained next. For automatic operation, it is sufficient to turn on the automatic operation switch 33 of the controller 32, which opens the hot water supply electromagnetic valve 29, causing a water flow in the water supply pipe 6, and closing the water flow switch 7, which closes the control circuit. 8
operates to open the gas solenoid valve 10, and at the same time the ignition device operates to ignite the burner 5. Thereby, the hot water heated by the heat exchanger 4 is injected into the bath heat exchanger 18 from the bath water supply pipe 27, and gradually accumulates in the bathtub 15. In this way, when the hot water in the bathtub 15 reaches a predetermined amount, the water level switch 30 is activated, and the hot water supply solenoid valve 29 is activated.
is closed and the water flow in the water supply pipe 6 is stopped, the hot water supply gas solenoid valve 10 is closed and the combustion of the hot water supply burner 5 is stopped, while the pump 22 starts rotating and the bath gas solenoid valve 24 is opened to The burner 19 is ignited and additional heating of the bathtub water begins. When the bath water reaches a predetermined temperature due to this heating, the hot water temperature detector 31 detects this, and the burner 19 stops burning and the pump 22 stops rotating. Thus, by simply operating the automatic operation switch 33, a predetermined amount of hot water at an appropriate temperature can be provided in the bathtub 15. If the hot water in the bathtub 15 gets cold or decreases, all you have to do is turn on the switch 33 again, and the temperature and amount can be adjusted again.

To supply hot water for showers, etc., all you have to do is open the hot water tap 26, and hot water can be obtained in the same way as a conventional instant water heater.In this case, the hot water tap 26 and the hot water solenoid valve 29 are connected to the instant water heater Since they act in parallel with each other, it is possible to use a shower or the like at the same time even while pouring hot water into the bathtub 15, which is extremely convenient.

Effects of the invention The present invention has such a configuration, and even when hot water is reheated to an appropriate temperature after automatic hot water supply, the temperature is uniform without any difference between the top and bottom, and the need for stirring can be eliminated.

Also, after operating the switch, it automatically pours the appropriate amount of hot water and heats it to the appropriate temperature so that you can take a bath immediately, making it extremely convenient. Furthermore, when boiling a bath using only a bath pot, it does not take a long time to fill the bath with water and heat it up, and the bath can be boiled in a short time. Also, unlike those that use only large instant water heaters to fill up hot water, there is no waste of water, such as overflowing when hot water is added to cold water.

Furthermore, it has many practical effects, such as being able to supply hot water at the same time even while the bath is being heated.

[Brief explanation of drawings]

The drawing is a schematic overall configuration diagram showing an embodiment of the present invention. 1...Automatic hot water supply bath pot main body, 2...Instant water heater, 3...Forced circulation bath heater, 8...Electric control circuit, 13...Hot water supply pipe, 15...Bathtub, 16...
Upper circulation pipe, 17...Lower circulation pipe, 18...Bath heat exchanger, 19...Bath burner, 20...Discharge pipe, 21...Suction pipe, 22...Circulation pump, 2
7...Bath water supply pipe, 28...Open tank, 29...
...Hot water solenoid valve, 30...Water level switch, 31...
Water temperature detector, 33...Automatic operation switch.

Claims (1)

[Scope of utility model registration request] The automatic hot water supply bath pot has an instantaneous water heater in the main body, a bath heat exchanger connected to the bathtub through upper and lower circulation pipes, a bath burner for heating the heat exchanger, and two discharge pipes and suction pipes in both circulation pipes, respectively. A forced circulation bath heater equipped with a circulation pump installed in a tubular manner is installed in parallel, and a bath water supply pipe branched from the hot water supply pipe of the water heater is connected to the bath heater through an open tank to prevent backflow. The bath water supply pipe is connected to the inside of the bath heat exchanger, and the bath water supply pipe is provided with a hot water supply solenoid valve that is opened by operating an automatic operation switch, and is provided on the upstream side of the open tank,
The bath heater is equipped with a water temperature detector that detects the water temperature in the bathtub and a water level switch that operates at the set water level of the bathtub, and these circulation pumps, bath burners, hot water supply solenoid valves, hot water temperature detectors, and water level switches are installed. When the water level switch is activated, the water supply solenoid valve is closed, the circulation pump is rotated, and the bath burner is burned.Furthermore, when the water temperature detector detects the set water temperature, the rotation of the circulation pump and the combustion of the bath burner are stopped. An automatic hot water supply bath device characterized by being provided with an electrical control circuit that is interlocked with the above.