JPS6023630Y2 - bath equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bath device, and more specifically, it supplies hot water into a bathtub while heating it, and this hot water is further heated by convection circulation through a heat exchanger to automatically produce hot water at a predetermined temperature. The present invention relates to bath equipment that can be obtained in a practical manner.

Conventional bath equipment supplies and stores a predetermined amount of water in the bathtub, and then convects and circulates the water through a heat exchanger that communicates with the bathtub and heats it, turning the water in the bathtub into hot water. there were.

However, with this conventional method, it takes a long time to store water in the bathtub and to bring the water to a predetermined temperature.
If there was not enough water in the bathtub, there was a risk that it would dry up and cause damage to the bathtub or a fire.

In addition, the amount of water stored must be monitored, making it difficult to maintain a constant amount.Furthermore, since the water is heated by convection after being stored in the bathtub, there is a significant difference in water temperature between the upper and lower parts of the bathtub, making it difficult to take a bath. There were drawbacks such as the difficulty of obtaining hot water at an appropriate temperature when stirring and mixing.

The present invention eliminates the drawbacks of the conventional bath equipment mentioned above, supplies hot water at a predetermined temperature directly into the bathtub, and automatically stops the hot water supply when the predetermined flow rate is reached, allowing convection circulation heating of the stored hot water. To provide a bath device capable of quickly providing hot water at an appropriate temperature in a bathtub without monitoring the water storage amount or worrying about dry heating.

An embodiment of this invention will be described below with reference to the drawings.

The figure shows a bathing device according to an embodiment of the present invention.

The bath system of this embodiment includes a combustor 1 that burns fuel such as kerosene, and above the combustor 1 is a lower tank 14.
A tubular heat exchanger 2 is provided above the lower tank 14, and an upper tank 5 is further provided above the heat exchanger 2.

These upper tank 5, heat exchanger 2 and lower tank 14
are connected in series in that order.

An upper circulation port 8 communicating with the upper part of the bathtub 4 via an upper circulation pipe 11 is formed at a predetermined height h from the bottom surface 10 on the upper side of the upper tank 5, and on the other side of the upper surface 13, a water supply is provided. tube 3
A water supply lower is formed that communicates with the

This upper surface 13 of the upper tank 5 is inclined upward from the water supply lower side toward the upper circulation port 8 side, and the water contact surface side of the bottom surface 10 has a groove for dispersing and uniformly flowing water supplied into the tank. A protrusion 6 is formed.

Further, a water reservoir 9 for rectifying water flowing to the heat exchanger 2 is formed on the bottom surface 10 of the upper tank 5 on the bathtub 4 side, and a water outlet 12 provided on the side of the water reservoir 9 is connected to the heat exchanger. 2
connected to one end of the

On the other hand, the upper part of the lower tank 14 is connected to the outlet 15 formed at the other end of the heat exchanger 2, and the lower side of the tank 14 has a lower circulation port 16 communicating with the lower part of the bathtub 4 via a lower circulation pipe 17. is formed.

The water supply pipe 3 connected to the upper tank 5 is connected to a water source,
This water supply pipe 3 has a water tap 20. Normally closed first solenoid valve 21.
and flow switches 22 are arranged in series from the water source side to the water supply lower side.

Also, an upper circulation pipe 1 connecting the upper tank 5 and the bathtub 4
1, a normally open second solenoid valve 23 is provided.

The first electromagnetic valve 21 and the second electromagnetic valve 23 are arranged to perform mutually contradictory opening and closing operations in conjunction with each other.

Further, a water level detection element 25 is provided at a predetermined position on the side wall of the lower tank 14 to detect a water head difference H when a predetermined amount of hot water is collected in the bathtub 4, and the water level detection element 25 is connected to a first electromagnetic valve. 21 and the second solenoid valve 23 are operated in conjunction with each other by electrical means.

Note that reference numeral 18 denotes a flue surrounded by the upper tank 5 and the lower tank 14, and the lower end of this flue 18 opens into the combustion chamber of the combustor 1, and the upper end is connected to the exhaust pipe 19 near the upper tank 5. Its tip is open to the atmosphere.

Further, reference numeral 24 is a temperature detection element provided on the side wall of the upper tank 5, 26 is a fuel tank for kerosene, etc., 27 is a fuel supply device, 28 is a fuel supply pipe that communicates the fuel tank 26 and the fuel supply device 27, 29 3 is a supply nozzle that supplies a certain amount of fuel into the combustor 1 from the fuel supply device 27; 30 is a blower that supplies air from the intake duct 31 to the blower duct 32 into the combustor 1; 34 is a preheating heater for combustor 1, and 3
Reference numeral 5 designates a preheating detection element that sends a signal regarding the preheating state of the combustor 1 to the first solenoid valve 21 and the second solenoid valve 23, respectively.

Next, the operation of the bath device configured as above will be explained.

When the water tap 20 installed in the middle of the water supply pipe 3 connected to a water source is opened, the combustor 1 is heated by the preheater 34, which is energized in advance, and when the temperature reaches a predetermined temperature, the preheat detection element 35 is activated. and emit an electrical signal.

This signal opens the first solenoid valve 21, and the flow switch 22
Water is supplied into the upper tank 5 from the water supply lower at the tip of the water supply pipe 3.

This water reaches the bottom surface 10 in contact with the temperature sensing element 24, is dispersed by the protrusions 6 on the bottom surface 10, becomes a uniform flow, is further rectified in the water reservoir 9, and passes through the heat exchanger 2 and the lower tank 14. While forming an almost double-shaped waterway, the lower circulation port 16. It is supplied into the bathtub 4 via the lower circulation pipe 17.

That is, since the second solenoid valve 23 is closed, no water is supplied from the upper circulation pipe 11 into the bathtub 4, and all water is supplied to the lower circulation pipe 1 through the heat exchanger 2 and the lower tank 14.
7 to the bathtub 4.

Also, at this time, the flow switch 20 is turned on and the fuel supply device 27 and the blower 30 are operated by electrical means, so when the ignition device (not shown) is operated appropriately, the fuel supplied to the combustor 1 is ignited. is burned.

This allows water to flow through the aforementioned path to the upper tank 5.
It is heated in the heat exchanger 2 and the lower tank 14, and is supplied into the bathtub 4 as hot water.

The temperature detection element 24 is set to a predetermined temperature, and when the water temperature is less than the predetermined temperature, the combustor 1 is activated.
It functions to stop its operation when the temperature exceeds a predetermined temperature.

As described above, hot water is stored sequentially from the bottom of the bathtub 4 upwards,
When the hot water in the bathtub 4 reaches a predetermined water level, the detection element 25 detects this and closes the first electromagnetic valve 21 to automatically stop water supply.

At this time, the second electromagnetic valve 23 is opened, and the upper circulation port 8 and the bathtub 4 are communicated via the upper circulation pipe 11, and the upper tank 5. Water reservoir part 9. Heat exchanger 2. A circulation circuit is formed which communicates with the bathtub 4 via the lower tank 14 and the lower circulation pipe 17.

In this state, if the temperature of the water in the bathtub 4 is low, continuous combustion occurs in the combustor 1, and as a result, the hot water in the bathtub 4 flows through the lower circulation pipe 17.
．． Lower tank 14. Convection circulation heating is carried out to the bathtub 4 via the heat exchanger 2, the upper tank 5 and the upper circulation pipe 11.

In this case, hot water heated at the bottom surface 10 of the upper tank 5 rises, reaches the upper circulation port 8 along the upper surface 13 that slopes upward toward the bathtub, and is discharged through the upper circulation pipe 11. , which is directly discharged from the water reservoir 9 to the upper circulation port 8.

In the former case, since the amount of hot water discharged along the upper surface 13 is sucked from the water reservoir 9, the water temperature detection element 24 is always
comes into contact with hot water that passes through the heat exchanger 2, and proper detection is performed.

In this way, when the hot water in the bathtub 4 reaches a predetermined temperature, the temperature detection element 24 operates, and the fuel supply device 27 and the blower 3
At the same time, the operation of combustor 0 is stopped, and combustion by combustor 1 is stopped.

When the temperature of the water in the bathtub 4 becomes low, the temperature detection element 2
By the operation 4, the fuel supply device 27 and the blower 30 are operated, combustion is automatically performed in the combustor 1, and the temperature of the water in the bathtub 4 is always constant.

Furthermore, when the water level in the bathtub 4 falls below a predetermined level, the water level detection element 25 operates to open the first solenoid valve 21 to supply hot water, and at this time, the second solenoid valve 23 is closed, thereby causing the inside of the bathtub 4 to be heated. The amount of hot water is always constant.

As explained above, according to the present invention, hot water is heated at the same time as water is supplied, hot water is stored sequentially from the bottom of the bathtub 4 upward, and after reaching a predetermined water level, hot water supply is stopped and convective circulation heating is performed. As a result, the process of storing hot water at a predetermined temperature to a predetermined water level is carried out completely automatically, so that hot water can be stored in the bathtub 4 in a short time, and it is easy to maintain heating to the predetermined temperature, and there is no need to worry about dry heating. You can quickly and safely get hot water at the right temperature.

Moreover, since a second solenoid valve 23 is provided that closes during hot water supply to prevent water from flowing out from the upper circulation port 8 into the bathtub 4 due to a short circuit, the entire amount of water supplied passes through the heat exchanger 2, resulting in thermal efficiency. It has a very good effect.

[Brief explanation of the drawing]

The figure is a longitudinal sectional view showing an embodiment of this invention. 1... Combustor, 2... Heat exchanger, 3.
...Water pipe, 4...Bathtub, 5...
・Upper tank, 7...Water supply port, Upper circulation port, 14...Lower tank, 16...
...Lower circulation port, 21.23...1st. Second electromagnetic valve, 25... Water level detection element. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A lower tank 14 is provided above and around the combustor 1, a heat exchanger 2 is provided above the lower tank 14, and an upper tank 5 is provided above the heat exchanger 2.
Heat exchanger 2. The lower tank 14 is connected in series in this order, and the upper tank 5 has an upper circulation port that communicates with the water supply lower of the water supply pipe 3 and the bathtub 4 that are connected to the water source via the first electromagnetic valve 21 via the second electromagnetic valve 23. 8, and the lower tank 14 is provided with a lower circulation port 16 that communicates with the bathtub 4 and a water level detection element 25 that detects a predetermined water level in the bathtub 4, and a detection signal from the detection element 25 causes both the electromagnetic valves 21 and 23 to be activated. 1. A bathing device characterized in that the bathing devices are made to perform mutually contradictory opening and closing operations.