JPS586359A - Solar heat bath hot water ffeder - Google Patents

Abstract

PURPOSE:To make it possible to utilize water heated by solar heat as bath hot water while keeping it hot by a method wherein the titled hot water feeder is attached to the outer surface of the outer wall of a building while a bathtub is provided inside the outer wall and both the boiler and the bathtub are made to communicate with each other through a circulation pipe provided with a check valve. CONSTITUTION:The solar heat hot water feeder 2 is attached aslant to the outer surface of the outer wall 1 with fixing metals so as to increase the amount of insolation applied on the feeder 2. At the same time, the bathtub 4 is provided inside the outer wall 1 in symmetrical relationship with the feeder 2. In this case, the bathtub 4 is divided into an inner tub 5 and an outer tub 6 by a partition wall 7. Further, the feeder 2 and the bathtub 4 are made to communicate with each other through the circulation pipe 8 provided with the check valve 11 and passing through the outer wall 1. The circulation pipe 8 comprises a low temperature hot water passage 9 connecting the lower end of the boiler 2 and the lowermost part of the bathtub 4 and a high temperature hot water passage 10 connecting the upper part of the boiler 2 and the water level section of the bathtub 4 so that low temperature hot water in the lowermost part of the bathtub 4 is heated by the feeder 2 and circulated through the water level section of the bathtub.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a solar heat bathing device which has a simple configuration and can keep hot water warmed by solar heat and then use it as bath water.

Conventional solar hot water bath systems generally connect a solar hot water heater mounted on the roof with a bathtub installed in the bathroom through a circulation pipe, allowing the hot water obtained from the solar hot water heater to flow into the bathtub. . In this configuration, a large amount of water is stored in the solar water heater, so the load on the roof is also large.
There is also a known structure in which hot water obtained from a solar hot water heater is stored in a hot water storage tank as another solar bathing system that differs from this structure and is likely to cause damage to the roofing material. However, the device N is large-scale and is not economical.

This idea is a further modification of the basic idea that was created against the background of the following two facts. In other words, the basic idea 1J is to install a solar water heater on the outdoor side of the exterior wall, install a bathtub indoors symmetrically with the solar water heater around the exterior wall, and connect the solar water heater and the bathtub with a circulation pipe. This system simplifies the device for obtaining bath water and achieves economical effects. In other words, the water heated by the solar water heater used here is heated while being replaced by the bathtub and natural circulation, so this solar water heater has a small capacity and is lightweight even when it supplies water, and it has a large storage capacity. There is no need to provide a separate tank.

However, as the outside air becomes colder after sunset, the hot water in the bathtub will flow backwards as the hot water in the solar water heater falls, causing the hot water in the bathtub to cool down, causing problems in keeping the bath water warm. .

This invention solves the above 11 points, and specifically, a solar water heater is installed on the outdoor side of the outer wall, a bathtub is installed symmetrically with the solar water heater around the outer wall, and a circulating pipe connects the solar water heater and the bathtub. The present invention provides a solar heat bathing system, characterized in that the circulation pipe is connected to the circulation pipe, and a check valve is provided in the circulation pipe.

Hereinafter, the present invention will be explained based on the drawings of the embodiments. 1st
In the figures, 1 is an outer wall, and 2 is a solar water heater installed on the outdoor side of the outer wall 1, which is a thin, step-rate type, and is a known water heater used as a circulating water heater. This water heater 2 is installed with a supporting metal fitting 3 having one end fixed to an outer wall 11 so as to be inclined in order to increase the amount of incident sunlight. Reference numeral 4 denotes a bathtub installed indoors symmetrically around the solar water heater and the outer wall 1. The bathtub 4 has an inner tank 5 and an outer tank 6. Separated.

Further, the solar water heater 2 and the bathtub 4 are connected through a circulation pipe 8 passing through the outer wall 1, so that a circulation phenomenon occurs in which the hot water heated by the solar water heater is exchanged with the low temperature and water in the bathtub 4. That is, the circulation pipe 8 is composed of a low-temperature water channel 9 that connects the lower end of the solar water heater 2 and the deep bottom of the bathtub 4, and a high-temperature water channel 10 that connects the -I- end of the solar water heater 2 and the water surface of the bathtub 4. The low-temperature water at the deep bottom of the bathtub 4 flows through the low-temperature water channel 9, ascends the solar water heater 2, flows through the high-temperature water channel 10, and pours into the bathtub 4, creating a circulation phenomenon.

The high-temperature waterway IO communicates with the inner tank 5 and the outer tank 6 2,
Pour some into outside 41'#6. Further, the outer tank 6 communicates with a low-temperature water channel 9 that communicates with the inner tank 5, so that a similar circulation phenomenon occurs between the outer tank 6 and the water heater 2.

A check valve 11 is installed in the circulation pipe 8 having the above-mentioned role to prevent backflow. That is, when the outside air becomes low temperature and the water heater 2 is cooled down, the high temperature water channel 10 is transferred from the bathtub 4 to the water heater 2.
Then, a reverse circulation phenomenon occurs in which the water heater 2 descends and the low-temperature waterway 9 flows from the water heater 2 to the bathtub 4. Heat is radiated in the water heater 2, and the hot water in the bathtub 4 becomes low temperature, so this hot water is kept warm. This allows the phenomenon of backflow circulation to be avoided.

As described above, according to the present invention, the structure is simple and simple, and the heat retaining effect is achieved, making it economical.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a plan view. 1...Outside wall 2...Solar water heater 4...Bath tank 8...Circulation pipe 11・・・・・・・・・Check valve patent applicant Matsushita Electric Works Co., Ltd. Representative patent attorney Toshimaru Takemoto (two idiots)

Claims (1)

[Claims] (1) Install a solar water heater on the outdoor side of the outer wall, install a bathtub symmetrically to the solar water heater with the outer wall at the center, connect the solar water heater and the bathtub with a circulation pipe, and further check the circulation pipe. A solar heat bathing device characterized by being equipped with a valve.