JPS5922144B2 - bath equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a bathing device, and its purpose is not only to keep the bathing water clean at all times, but also to use the remaining hot water once used for bathing on the next day. Not only can it be recycled and used over and over again, saving water resources and energy, but it can also be used to save money, such as reducing water and fuel costs. The purpose of the present invention is to provide a bathing device that can obtain the desired results.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.

In the figure, 1 is a bathtub, 2 is a circulation flow path, and one end is the bathtub 1.
The other end connects to the bathtub 1 at a low position such as the bottom or the lower part of the side wall and serves as a flow passage inlet, and the other end communicates with the bathtub 1 at a high position such as the upper part of the side wall of the bathtub 1 and serves as a flow passage outlet. .

This circulation channel 2 is equipped with a pump 3 on the way, and the operation of the pump 3 forces the hot water in the bathtub 1 to circulate through the circulation channel 2. A filtration sterilization device 4 is installed upstream to filter and sterilize the circulating hot water.

For example, as shown in FIGS. 2 and 3, the filtration sterilization device 4 has a cylindrical partition wall 6 provided at the center of the inner bottom surface of a cap-shaped main body 5 with one side open. is formed into a filtration chamber 8, and through holes 9 are bored at appropriate intervals in the circumferential direction of the partition wall 6 at appropriate intervals in the circumferential direction of the partition wall 6 to communicate the two chambers 7 and 8, and the sterilization chamber 7 is filled with, for example, an anion exchange resin. is filled with a granular disinfectant 10 on which iodine is adsorbed, and the filter chamber 8 is filled with a filter medium 11 such as polyurethane foam.

Incidentally, notches 12 are formed at appropriate intervals along the circumferential direction of the opening edge of the main body 5, and the filter medium 11 is formed with these notches 1.
It is packed slightly inside of 2.

As shown in FIGS. 1 and 2, the filtration sterilization device 4 is constructed such that the opening of the sterilization chamber 7 is connected to the flow of the circulation channel 2 via a fitting 14 provided on the tank wall 1' of the bathtub 1. Connected to the road entrance,
The opening of the filtration chamber 8, that is, the open end of the main body 5, is removably attached to the inner wall of the bathtub 1 such that it has a certain amount of clearance 13 with the tub wall 1' of the bathtub 1.

That is, the fixture 14 has a cylindrical portion 14' that penetrates the tank wall 1' of the bathtub 1, and the open end of the pipe 2' constituting the circulation flow path 2 is located in the portion that projects outward from the bathtub 1. A cylindrical partition wall 6 that partitions the sterilization chamber 7 and the filtration chamber 8 of the filtration sterilization device 4 is screwed or fitted into the inwardly projecting portion of the bathtub 1 in a watertight manner.

In addition, 15 is a thermistor provided in the circulation passage 2 downstream of the pump 3, and 16 is a heating passage between the pump 3 and thermistor 15 that connects the circulation passage 2 with the bathtub 1. In the heating channel 16, there is a valve and a heating device 18 in the middle thereof, which are connected to the thermistor 15 and open when the hot water flowing through the circulation channel 2 reaches a temperature lower than the set temperature, and close when the temperature reaches a high temperature. is provided.

Although this heating device is not shown, it is possible to share a device that heats hot water supplied from the water supply to a hot water mixing faucet or a shower.

Further, 20 is a high frequency generator provided at the outlet of the circulation channel 2.

When the temperature of the hot water flowing through the circulation channel 2, that is, the temperature of the bath, falls below a certain temperature, a portion of the hot water flowing through the circulation channel 2 flows into the heating channel 16 and is heated by the heating device 18. The bath is heated and returned to the bathtub 1 to raise the temperature of the bath.

The pump 3, thermistor 15, valve 17 and heating device 18 are all incorporated into the boiler 19.

4 to 6 show an embodiment in which the filtration sterilization device 4 is also incorporated into the boiler 19. According to this embodiment, the filtration sterilization device 4 has a filtration chamber 8 different from that of the above-mentioned embodiment. The cylindrical partition wall 6 that partitions the filtration chamber 8 and the sterilization chamber 7 is formed integrally with the lid plate 21, and the opening is closed by the lid plate 21.
The tip has a clearance 22 between it and the inner bottom surface of the main body 5, and the compartment 7.8 communicates through the clearance 22.

The cover plate 21 is directly fixed to the outer surface of the boiler 19, and the pipe 2' constituting the circulation flow path 2 is connected to the boiler wall surface 1.
9' and the cover plate 21, and are connected to the filtration chamber 8 and the sterilization chamber 7.

Further, the filter medium 11 is filled in the filter chamber 8 so as to have an appropriate gap 23 between the filter medium 11 and the cover plate 21.

The main body 5 is detachably attached to the cover plate 21 by screwing or fitting.

Thus, in the bathing device of the present invention, when the hot water in the bathtub 1 is forced to circulate through the circulation channel 2, the hot water is filtered by the filter medium 11 in the filtration chamber 8, and the sterilizing agent in the sterilization chamber 7 is removed. 10, it is sterilized and recycled into clean hot water.

To explain this sterilization effect in more detail, the sterilization chamber 7
During the passage, the sterilization in the water comes into direct contact with the iodine adsorbed on the anion exchange resin and is sterilized, and at the same time the molecular iodine in the passing water is reduced to zero. It is freely eluted to a concentration of 1 ppm or more, and a sterilizing concentration of iodine is prevented from forming in the water, thereby achieving continuous sterilization and prevention of bacterial growth.

Incidentally, instead of the anion exchange resin on which iodine is adsorbed in the above embodiment as the disinfectant 10, it is also possible to use activated carbon on which silver ions are adsorbed, and in this case also, the anion exchange resin adsorbs iodine. It can produce the same effect as when using a damped one.

Even when the bathing device of the present invention is used to reboil the same water for three days and taking a bath, the changes in the temperature of the water and the number of bacteria are compared with a conventional general bathing device that does not have a filtration sterilization device. , resulting in the graphs shown in FIGS. 7 and 8.

As is clear from the above graph, in the conventional bathing device, both the turbidity and the number of bacteria increase significantly with the passage of time, whereas in the bathing device of the present invention, the number of bacteria increases significantly with the passage of time. The turbidity and number of bacteria in the bath are almost the same as when bathing on the first day, and the bath maintains a sufficient degree of cleanliness.

Therefore, you don't have to change the water every day (but you can still take a bath for 3 or more days), and you can save a lot of water, as well as water and sewerage costs. .

In addition, the table below shows the comparison of the boiling times between when a bath is once boiled using the bathing device of the present invention and then re-boiled the next day, and when the bath water is replaced and boiled using a conventional bathing device.

(However, the time to add water was included in the boiling time.) As a result of the above, if you re-boil a Shi family bath the next day,
You can see that the boiling time is significantly shorter than boiling a bath with fresh water.

Therefore, if you use the bathing device of the present invention to re-boil the water in the bathtub and use it for 2-3 days or more, it is no longer necessary to change the water in the bathtub every day and take a bath using the conventional bathing device. The time it takes to boil water every day is significantly shorter than that of the conventional method, and the amount of fuel used is naturally reduced, resulting in energy savings and reductions in fuel costs.

Furthermore, since the bathing device of the present invention is equipped with a filtration sterilization device upstream of the pump in the circulation flow path, even if a water leak occurs at the attachment point of this filtration sterilization device, the leakage water flowing through the armpit can be removed by the pump. Since it is suctioned by the air, there is no problem such as blowing out from the above-mentioned areas.

In addition, the filtration sterilization device has a sterilization chamber filled with a sterilizing agent and a filtration chamber filled with a filter medium formed in concentric circles with the former outside through a cylindrical partition wall, inside a cap-shaped main body. A through hole is provided close to the bottom surface of the main body to communicate the above-mentioned compartments, an inlet is provided on the side of the filtration chamber that faces the bottom surface of the main body, and an outlet is provided on the side of the sterilization chamber that faces the bottom surface of the main body. Therefore, it can be formed into a thin flat shape, so even if it is installed inside a bathtub, it will not interfere with bathing.Furthermore, the resistance when hot water passes through the filter medium is small, making it compact and compact. pumps can be used.

In addition, the filtration sterilization device has a cylindrical partition inside the cap-shaped main body, and the inside and outside of the partition are used as a sterilization chamber and a filtration chamber.
It is easy and convenient because the sterilizing material and the filtering material can be replaced at the same time.

[Brief explanation of drawings]

The drawings show embodiments of the bathing device of the present invention; FIG. 1 is a schematic explanatory diagram of the entire device, FIG. ■−■ of the diagram
Part of the line cross-sectional view is cut away. 4 to 6 show other embodiments, FIG. 4 is a schematic explanatory diagram of the entire device, FIG. 5 is a longitudinal cross-sectional view of the filtration sterilization device, and FIG. 6 is the line ■-■ in FIG. 5. Part of the cross-sectional view is cut away. FIG. 7 is a graph showing changes in the turbidity of hot water, and FIG. 8 is a graph showing changes in the number of bacteria. 1... Bathtub, 2... Circulation channel, 3... Pump, 4
... Filter sterilization device, 5 ... Main body, 6 ... Partition wall, 7
... Sterilization chamber, 8... Filtration chamber, 9... Through hole, 10.
... Bactericidal agent, 11... Filter medium.

Claims (1)

[Scope of Claims] 1. A circulation flow path connected to a bathtub and forcibly circulating hot water in the bathtub by a pump is provided, and a filtration sterilization device is installed at the entrance of this circulation flow path, A filtration sterilization device has a sterilization chamber filled with a sterilizing agent and a filtration chamber filled with a filter material formed concentrically inside a cap-shaped main body with the former outside through a cylindrical partition wall. A through hole for communicating the above-mentioned compartments is provided in a position close to the inner bottom surface, an inlet is provided on the side facing the inner bottom surface of the main body of the filtration chamber, and an outlet is provided on the surface side opposite to the inner bottom surface of the main body of the sterilization chamber. A bath device featuring: 2. The bathing device according to claim 1, wherein the disinfectant is an anion exchange resin with iodine adsorbed.