JPS6142022Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a bath device, and more specifically, it supplies water while heating it into a bathtub, and further heats the hot water by convection circulation through a heat exchanger. This invention relates to a bath device that automatically obtains hot water at a predetermined temperature.

(Prior Art) A conventional bath device supplies and stores a predetermined amount of water in a bathtub, then circulates the water by convection to a heat exchanger communicating with the bathtub and heats it there. It was something to boil in hot water.

(Problems that the invention aims to solve) However, with this conventional device, it takes a long time to fill the bathtub with water and to heat it to the required temperature, and if there is not enough water in the bathtub, it can run dry, posing a risk of damage to the bathtub or a fire. It also has other drawbacks, such as very poor heating and circulation efficiency.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the conventional bath equipment, to supply hot water at a predetermined temperature directly into the bathtub, to obtain the desired hot water safely and quickly, and to improve heating and circulation efficiency. Our goal is to provide you with a much better bath equipment.

(Means for solving the problem) The bath device of the present invention includes a lower tank around the upper part of the combustor, a heat exchanger above the lower tank,
An upper tank is provided above each of the heat exchangers, and these are connected in series in the order of the upper tank, the heat exchanger, and the lower tank, and the upper tank is connected to a water supply port of a water supply pipe connected to a water source and a bathtub. The lower tank is provided with an upper circulation port, and the lower tank is provided with a lower circulation port that communicates with the bathtub, and the water supplied to the upper tank is distributed and uniformly distributed on the water contact surface side of the bottom surface of the upper tank. A protrusion is formed for this purpose.

(Function) According to the bath device of the present invention, when hot water is supplied to the bathtub, water is supplied into the upper tank from the water supply port at the tip of the water supply pipe, and this water is uniformly distributed by the projections formed on the bottom of the upper tank. The flow became more and more
From its opposite end it flows through a heat exchanger into the lower tank. During this time, that is, while flowing sequentially through the upper tank, the heat exchanger, and the lower tank, the hot water has a predetermined temperature and is supplied into the bathtub via the lower circulation port.

(Example) Hereinafter, an example of the present invention will be described based on 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, a lower tank 14 is arranged above the combustor 1, and a tubular heat exchanger 2 is arranged above the lower tank 14. Moreover, upper tanks 5 are further provided above the heat exchangers 2, respectively. These upper tank 5, heat exchanger 2, and lower tank 14 are connected in series in that order.

An upper circulation pipe 11 is provided on one side above the upper tank 5.
An upper circulation port 8 communicating with the upper part of the bathtub 4 via the bottom surface 10 is formed at a predetermined height h from the bottom surface 10.
A water supply port 7 communicating with the water supply pipe 3 is formed on the other side. This upper surface 13 of the upper tank 5 is inclined upward from the water supply port 7 side toward the upper circulation port 8 side, and the bottom surface 10 is provided on the water contact surface side to disperse and uniformly flow 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. It is connected to one end of 2.

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

A water supply pipe 3 connected to the upper tank 5 is connected to a water source, and a water supply tap 20, a normally closed solenoid valve 21, and a flow switch 22 are arranged in series in this order from the water source side to the water supply port 7 side. has been done. Further, a water level detection element 24 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 accumulated in the bathtub 4. are operated in conjunction with each other by electrical means.

In addition, the code|symbol 18 is the upper tank 5 and the lower tank 1.
The lower end of this flue 18 is opened into the combustion chamber of the combustor 1, the upper end is connected to an exhaust pipe 19 near the upper tank 5, and the tip thereof is opened to the atmosphere. Further, reference numeral 23 indicates a temperature detection element provided on the side wall of the upper tank 5, 25 indicates a fuel tank for kerosene, etc., 26 indicates a fuel supply device, 27 indicates a fuel supply pipe that communicates between the fuel tank 25 and the fuel supply device 26, and 28 2 is a supply nozzle that supplies a certain amount of fuel into the combustor 1 from the fuel supply device 26, 29 is a blower that sends air from an intake duct 30 to a blower duct 31 into the combustor 1, and 32 is a supply nozzle that supplies a certain amount of fuel from a water source to the bathtub 4.
33 is a preheating heater for the combustor 1, and 34 is a preheating detection element that sends a signal to the electromagnetic valve 21 regarding the preheating state of the combustor 1.

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 the water source is opened, the combustor 1 is warmed by the preheating heater 33 that has been energized in advance, and when the predetermined temperature is reached, the preheating detection element 34 is activated. and emit an electrical signal. With this signal, the solenoid valve 21
is opened, and water is supplied into the upper tank 5 from the water supply port 7 at the tip of the water supply pipe 3 via the flow switch 22.
This water reaches the bottom surface 10 in contact with the temperature detection element 23, 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. The water is supplied into the bathtub 4 through the lower circulation port 16 and the lower circulation pipe 17 while forming a substantially Z-shaped waterway. At this time,
Since there is a predetermined height h between the bottom surface 10 of the upper tank 5 and the upper circulation port 8, water is not supplied into the bathtub 4 from the upper circulation pipe 11, and all the water is connected to the heat exchanger 2 and the lower tank 14. Through the lower circulation pipe 17
The water is supplied to the bathtub 4 from Also, at this time, the flow switch 20 is turned on and the fuel supply device 26 and the blower 29 are operated by electrical means, so when the ignition device (not shown) is operated appropriately, the fuel supplied to the combustor 1 is turned on. ignited and burned. Thereby, the water passing through the above-mentioned path is heated in the upper tank 5, heat exchanger 2, and lower tank 14, and is supplied into the bathtub 4 as hot water.
Note that the temperature detection element 23 is set to a predetermined temperature, and when the water temperature is less than the predetermined temperature, the combustor 1
It operates and stops 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, and when the hot water in the bathtub 4 reaches a predetermined water level, the detection element 24 detects this and closes the electromagnetic valve 21 to automatically stop water supply.

If the temperature of the water in the bathtub 4 is low in this state, 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, the lower tank 14, the heat exchanger 2,
Convection circulation heating is performed to the bathtub 4 via the upper tank 5 and the upper circulation pipe 11. In this case, the 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 2 is always
3 comes into contact with hot water heated through the heat exchanger 2, and proper detection is performed. In this manner, when the hot water in the bathtub 4 reaches a predetermined temperature, the temperature detection element 23 is activated, and the operation of the fuel supply device 26 and the blower 29 are simultaneously stopped, and combustion by the combustor 1 is stopped.

When the temperature of the water in the bathtub 4 becomes low, the temperature detection element 23 operates to operate the fuel supply device 26 and the blower 29, and the combustor 1 automatically performs combustion, so that the temperature of the water in the bathtub 4 is always maintained. It becomes constant.
Further, when the water level in the bathtub 4 falls below a predetermined level, the water level detection element 24 operates and the electromagnetic valve 21 is opened to supply hot water, thereby controlling the amount of hot water in the bathtub 4 to be always constant.

(Effects of the invention) As explained above, according to the invention, hot water is heated at the same time as water is supplied, and hot water is stored sequentially from the bottom of the bathtub upwards, so hot water can be stored in the bathtub in a short time and the bathtub can be emptied. You can get hot water at the right temperature quickly and safely without worrying about burning. Moreover, during hot water supply, the water supplied to the upper tank is dispersed by the protrusions on the bottom of the upper tank and becomes a uniform flow that passes through the heat exchanger.
Both the heat exchanger and the lower tank have good heating efficiency, so even a large amount of water can be heated to a predetermined temperature, and the thermal efficiency of fuel usage is also very good.

[Brief explanation of drawings]

The figure is a longitudinal sectional view showing an embodiment of the present invention. 1... Combustor, 2... Heat exchanger, 3... Water supply pipe, 4... Bathtub, 5... Upper tank, 6... Protrusion, 7... Water supply port, 8... Upper circulation port, 10... …
Bottom surface, 14...lower tank, 16...lower circulation port. 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 is provided above and around the combustor, a tubular heat exchanger is provided above this lower tank, and an upper tank is provided above this heat exchanger, and these are connected in the order of upper tank, heat exchanger, and lower tank. The upper tank is provided with a water supply port of a water supply pipe connected to a water source and an upper circulation port that communicates with the upper part of the bathtub, and the lower tank is provided with a lower circulation port that communicates with the lower part of the bathtub; 1. A bath device characterized in that projections are formed on the water-contacting surface of the bottom of the upper tank to disperse and uniformly flow water supplied into the upper tank.