JP2001263810A - Hot water supply for bathtubs and heated pools, purification heating and reuse system - Google Patents

Abstract

(57) [Summary] [Problem] To use an electromagnetic induction heating type temperature riser without using a boiler, the installation place can be small, a subtle temperature can be cooled, and the temperature rise time is short. However, the present invention provides a hot water supply to a bathtub and a hot water pool and a purification / heating / reuse system. SOLUTION: The water supplied to a hot water supply tank 2 is heated through an electromagnetic induction heating type temperature raising device 11, the heated water is returned to a hot water supply tank 2, and the returned hot water is supplied to a bathtub 1 or the like. And the hot water in the bathtub or the like 1 is sent to the filter 5 for filtration, and the filtered hot water is heated by an electromagnetic induction heating type heater 11a.
And a system for recirculating the heated hot water 12 to the bathtub 1 and the like, and constitutes a hot water supply for the bathtub and the like, a purification temperature rising reuse system 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for supplying hot water to a bathtub and a hot-water pool (hereinafter referred to as a bathtub), purifying hot water in the bathtub, etc., raising the temperature, and reusing the system.

[0002]

2. Description of the Related Art Conventional hot water is supplied to a bathtub or the like, as shown in FIG. 3, by feeding water supplied to a hot water tank 2 to a boiler 3 and heating the water to return it to the hot water tank 2. It is sent to a water tank 1 etc. The hot water in the hot water supply tank 2 is sent to the shower 4 for use. Then, as shown in FIG. 3, the hot water in the bathtub or the like 1 is purified and heated and reused, as shown in FIG. Through the pipe inside the vessel 7,
The steam is sent from the boiler 3 and heated from around the pipe to increase the temperature. The heated water is returned to the bathtub 1 and reused.

[0003]

In the above-mentioned conventional system, the supply of fresh hot water to the bathtub or the like 1 uses hot water whose temperature has been raised by using the boiler 3. Also in the reuse, the filtered hot water is sent to the heat exchanger 7, and the temperature is raised by the steam 6 sent from the boiler 3 to the heat exchanger 7, so that the boiler 3 and the heat exchanger 7 are required. When the temperature is raised by the steam 6, delicate temperature control cannot be performed, and the temperature of the heat exchanger 7 cannot be increased rapidly. Therefore, it is necessary to lengthen the pipe of the heat exchanger 7. It takes up a lot of space and costs. Also,
As described above, it takes time to raise the temperature of the steam 6.

According to the present invention, a boiler is not used, an electromagnetic induction heating type heater is used, the installation space is smaller than that of a conventional system, fine temperature control can be performed, and the heating time can be reduced. It is an object of the present invention to provide a system for supplying new hot water to a bathtub or the like and purifying, heating, and reusing the bathtub or the like.

[0005]

Means for Solving the Problems The temperature of water supplied to a hot water supply tank is raised through a heater that accommodates an electromagnetic induction heating element and allows a liquid to pass through the heating element. Hot water is returned to the hot water tank, the hot water is supplied to a bathtub or a hot water pool, and a hot water in the bathtub or the hot water pool is sent to a filter for filtration. A bathtub or a heated water pool containing a induction heating element and a system for raising the temperature through a heater through which a liquid can pass through the heating element and returning the heated water to the bathtub or the heated water pool; Hot water supply, purification and heating and reuse system.

The heater includes a plurality of metal plates stacked in a pipe and a heating element provided with a number of passages between the metal plates, and a work is provided outside the pipe so as to cover the heating element. It is preferable that the coil is wound, and the work coil is connected to an external power supply to pass an electric current, so that the heating element can generate electromagnetic induction heat.

[0007]

Embodiments of the present invention will be described with reference to the drawings. Hot water supply to a bathtub or the like and purification and heating / reuse system 10 for hot water in the bathtub or the like according to the present invention (hereinafter referred to as system 10)
FIG. 1).

To supply fresh hot water to the bathtub 1 etc., the hot water is supplied to a hot water supply tank 2 and the water is sent to a heater 11 having a built-in electromagnetic induction heating short without using a boiler.
1 to return to the hot water tank 2
And a part of the hot water is used in the shower 4.

Purification and re-use of the hot water in the bathtub or the like 1 is carried out by sending the hot water in the bathtub or the like 1 to the filter 5 and filtering it, then to the heater 11a to raise the temperature, and then heating the purified hot water 12 to the bathtub or the like. Reflux to 1 and use. It is preferable to sterilize 9 before returning the purified warmed hot water 12 to the bathtub 1 or the like.

As shown in FIG. 2, the heaters 11 and 11a are formed by stacking a number of metal plates such as stainless steel in a pipe 13 and packing a heating element 14 having a number of passages between the metal plates. A work coil 15 is wound outside the pipe 13 so as to cover the heating element 14, and the work coil 15 can be connected to an external power supply.

When a current flows through the work coil 15, the heating element 14 generates a magnetic flux 16 and passes through the heating element 14 as shown by a dotted line in FIG.
An induced current 17 is generated inside the metal plate of No. 4, and Joule heat is generated by the induced current 17 and the specific resistance of the metal, so that the metal plate generates heat. Therefore, when the gas or liquid is sent into the pipe 13, the gas or liquid comes into contact with the heated metal plate and is heated and comes out. Since this temperature rise is a temperature rise due to contact with a large number of metal plates of the heating element 14 that has generated heat, it is shorter than a temperature rise by heat exchange with steam, that is,
The temperature rises rapidly. Further, since the heaters 11 and 11a are of an electromagnetic induction heating type, delicate temperature control is possible.

The purified water filtered by the filter 5 in the system 10 is rapidly heated by the heating element 14 when passing through the heater 11a, and comes out as the purified heated water 12.

The purified hot water 12 is returned to the bathtub 1 so that the hot water in the bathtub 1 can be reused.

[0014]

The system according to the present invention does not use a boiler for reheating of fresh hot water supply and reheating of hot water for cleaning and reusing bath water in a bathtub or the like. The use of such a heater allows for delicate temperature control, requires less installation space than conventional systems, has a shorter heating time, and has better thermal efficiency.

[Brief description of the drawings]

FIG. 1 is a chart diagram of a system according to the present invention.

FIG. 2 is an explanatory diagram of a heater used in the system according to the present invention.

FIG. 3 is a chart diagram of a conventional system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub etc. 2 Hot water supply tank 3 Boiler 4 Shower 5 Filter 6 Steam 7 Heat exchanger 8 Purification heating water 9 Sterilization 10 System 11 Heater 12 Purification heating water 13 Pipe 14 Heating element 15 Work coil 16 Magnetic flux 17 Induction current

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L024 CC02 CC05 CC16 CC30 DD21 DD32 3L025 AA06 AA14 3L036 AD32 AD38

Claims (2)

[Claims] The temperature of water supplied to a hot water supply tank is raised through a heater that accommodates an electromagnetic induction heating element and allows a liquid to pass through the heating element. A hot water supply system that returns to the hot water tank and supplies the returned hot water to a bathtub or a hot water pool; and sends hot water from the bathtub or the hot water pool to a filter for filtration. And a system for raising the temperature through a heater through which a liquid can pass through the heating element, and for returning the heated water to the bathtub or the heated water pool; Purification heating re-use system. 2. A heating device, wherein a plurality of metal plates are stacked in a pipe and a heating element provided with a plurality of passages between the metal plates is housed therein, and the heating element is provided outside the pipe so as to cover the heating element. 2. A bathtub or hot water according to claim 1, wherein a work coil is wound around the work coil, and the work coil is connected to an external power supply to pass an electric current so that the heating element can be heated by electromagnetic induction. Pool hot water supply, purification heating and reuse system.