JP2001104182A - Purifying device for bath water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent air from flowing backward from a drain pipe to a purified water pipe for bathwater even if there is a level difference between installation heights of a bathtub and a device when bathwater in the purified bathwater pipe is discharged to the outside of the pipe line. SOLUTION: Purifying instruments such as a hair catcher 5, a main pump 6, a filter tank 8, a heater 9, etc., are respectively connected in series through connection pipes between a suction pipe 3 sucking bathwater in a bathtub and a discharge pipe 10 discharging again purified bathwater to the bathtub to form a bathwater purifying pipe line, and a check valve 19 is disposed in a drain pipe 17 which is connected to the bathwater purified pipe line through a changeover valve 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath apparatus, and more particularly to a purifying treatment such as filtration and sterilization while forcibly circulating bath water in a bath tub, and at the same time keeping the bath temperature at a bathing temperature to constantly clean the bath water. The present invention relates to a so-called 24-hour bath apparatus which can maintain a suitable temperature and take a bath at any time for 24 hours.

[0002]

2. Description of the Related Art Recently, use of a bath water purifying apparatus, that is, a 24-hour bath apparatus, in which bath water in a bath tub is constantly kept clean and at an appropriate temperature so that a bath can be comfortably taken 24 hours a day and saves water. It has become popular.

[0003] An example of such a bath water purifying apparatus is shown in FIG. 4, wherein 1 is a bathtub, 2 is bath water, 3 is a suction pipe for sucking bath water 2 in bathtub 1, and 4 is a suction pipe. The apparatus main body 10 in which cleaning treatment devices for purifying the bath water sucked in by the suction pipe 3 are collectively provided, and the bath 10 cleaned by the apparatus main body 4 discharges the bath water into the bathtub 1 again. Discharge pipe.

The apparatus main body 4 contains a hair catcher 5 for removing large dirt in advance, a main pump 6 for forcibly circulating bath water through a bath water circulation path, and an ultraviolet lamp for sterilizing the bath water with ultraviolet rays. Ultraviolet sterilizer 7, filtering tank 8 filled with various types of granular filter media such as activated stones, activated carbon, ceramic balls, etc. directly or in buckets or net bags to remove dirt from the bath water, and keep the bath water at an appropriate temperature. Cleaning equipment such as a heater 9 as a heating device for this purpose is provided in series with each other via a connecting pipe.

[0005] As described above, a bath water purifying pipe for purifying the bath water 2 in the bath tub 1 and performing heating and heating and discharging the bath water to the bath tub 2 again is formed. A heat sterilization line configured to heat-sterilize with a bath water 2 heated to a high temperature when the gasification tube is contaminated with bacteria, or reversely formed by a bath water 2 in a bathtub 1 when a filter medium in a filtration tank 8 is contaminated. Further switching valves, bypass pipes,
Provide connecting pipes, sub-pumps, etc.

[0006] Reference numeral 11 denotes a bypass pipe which bypasses the main pump 6 from the hair catcher 5 and connects to a connecting pipe between the main pump 6 and the ultraviolet sterilizer 7.
1 is provided with a small sub-pump 12 which is driven during heat sterilization and slowly circulates bath water in a heat sterilization line.

A connecting pipe 13 branches from the discharge pipe 10 via L-type switching valves 14 and 15 and connects to a connecting pipe between the main pump 6 and the ultraviolet sterilizer 7 upstream of the connection position of the bypass pipe 11. And 16 is the filtration tank 8
And a connecting pipe branched from the connecting pipe between the heater and the heater 9 and connected to the connecting pipe 13.

In the case of 17, the bath water used for heat sterilization and backwashing is used when the bath water purification pipe is contaminated with bacteria and sterilized by heat, or when the filter medium of the filtration tank 8 is dirty and backwashed. It is a drain pipe for discharging out of the water purification pipe, and the drain pipe 17 is
The connection pipe between the main pump 6 and the ultraviolet sterilizer 7 is connected to the connection pipe of the bypass pipe 11 downstream from the connection pipe of the main pump 6 and the ultraviolet sterilization apparatus 7 through a T-type drain switching valve 18.

When the cleaning operation is selected in the apparatus configured as described above, the bath water 2 in the bathtub 1 is sucked in by the suction pipe 3, large dirt is removed by the hair catcher 5, and the ultraviolet sterilizer 7 removes the dirt. After being sterilized by ultraviolet light, filtered by the filtration tank 8, and heated by the heater 6, the water is circulated through a bath water purification conduit indicated by an arrow which is discharged again from the discharge pipe 10 to the bathtub 1.

When the heat sterilization operation is selected, the drive of the main pump 6 is stopped and the drive of the sub-pump 12 is started, and the switching valves 14, 15, and 18 are switched to the heat sterilization operation side as shown in FIG. The bath water 2 in the bathtub 1 sucked by the suction pipe 3 is cleaned by the hair catcher 5 to remove a large dirt.
Is circulated and discharged to the discharge pipe 10, and then circulates through a closed loop heat sterilization pipe which returns to the apparatus main body 4 via the connection pipe 13.

If the bath water 2 continues to circulate through the closed loop heat sterilization pipe as described above, the heating by the heater 9 is repeated, and the temperature rises to about 70 ° C., and this hot water is circulated. The bacteria adhering to the part of the bath water purification pipe to be removed are removed by heat sterilization.

After the heat sterilization of the bath water purification line is completed, the heat sterilization water, which is the bath water 2 used for the heat sterilization, is removed from the drain pipe 17 by the heat sterilization water discharge line shown by the arrow in FIG. Is discharged out of the bath water purification line.

Further, when the filter medium in the filtration tank 8 is selected to perform the backwashing operation, the switching valves 14, 15, and 18 are switched to the backwashing operation side as shown in FIG. The bath water 2 flows in the filtration tank 8 in the reverse direction to backwash the filter medium and discharge the backwash water from the drain pipe 17. Flowing on the road.

[0014]

However, when the bath water 2 in the bath tub 1 is discharged from the drain pipe 17 to the outside of the bath water purifying line by the heat sterilization operation or the backwash operation as described above,
When the drainage switching valve 18 provided in the drainage pipe 17 is opened, air flows backward from the drainage pipe 17 and enters the bath water purification pipe depending on the installation conditions of the apparatus and the size of the main pump.

When the air that has flowed back through the drain pipe 17 enters the bath water purification pipe, the main pump 6 spills air during the operation of discharging the hot sterilizing water or the backwashing operation, causing the main pump 6 to run idle and smoothly. The heat sterilization water and backwash water cannot be drained, and the cleaning operation cannot be performed stably due to the air remaining in the bath water purification pipe. There is a problem that the attached dirt is discharged to the bathtub 1.

In a home model, since there is no need for a very large difference in the installation height between the bathtub 1 and the apparatus main body 4, the main pump is trapped immediately after the drain pipe 17 is trapped or the drain switching valve 18 is opened. This problem was solved, for example, by driving the 6.

However, in the case of a business model that requires a large difference in the installation height between the bathtub 1 and the apparatus main body 4,
Since the drive speed of the drainage switching valve 18 is slow and a large pump with a slow rise is provided as the main pump 6, it is difficult to prevent the backflow of air from the drainage pipe 17.

Therefore, it is difficult to provide a line for heat sterilization or backwashing in such a commercial model in order to prevent a problem due to backflow of air from the drain pipe 17.

The present invention solves the above-mentioned problems of the prior art, and is a business model that requires a large difference in installation height between the bathtub 1 and the apparatus main body 4 as well as a household model. Another object of the present invention is to provide a bath water purifying apparatus in which there is no possibility of backflow of air from the drain pipe 17 even if a pipe line for heat sterilization or back washing is provided.

[0020]

According to the first aspect of the present invention, bath water in a bathtub is sucked by a suction pipe and sterilized by a cleaning device such as an ultraviolet sterilizer, a filtration tank, and a heater in the main body of the device.
In a bath water purifying apparatus provided with a bath water purifying pipe which discharges into a bathtub again through a discharge pipe after a predetermined cleaning treatment such as filtration and heating, the bath water purifying pipe is switched from the bath water purifying pipe via a switching valve. A check valve is installed in the drain pipe that branches and discharges the bath water out of the bath water purification pipe, and the reverse flow of air from the drain pipe is completely prevented when the drain switching valve is opened. .

[0021] The invention of claim 2 is characterized in that the bath water cleaning pipe is heated to a high temperature by repeatedly circulating the bath water cleaning pipe again without discharging the bath water after the cleaning treatment to the bath tub. In addition to providing a closed loop heat sterilization line that sterilizes the bath water purification line with the bath water, a check valve is provided in the drain pipe connected to the bath water purification line, and the heat sterilization line is It was constructed so that there was no danger of backflow of air from the drainage pipe while having it.

[0022]

FIG. 1 shows an embodiment of the present invention.
3 will be described based on the piping diagram showing the embodiment of FIG.
Since the basic configuration of the embodiment is the same as that of the conventional example, the same components are denoted by the same reference numerals.

Referring to FIG. 1, the structure of the present invention will be described. A suction pipe 3 for sucking bath water in a bathtub and a discharge pipe 10 for discharging cleansing bath water again into the bathtub.
A hair catcher 5 for removing large dirt in advance, a main pump 6 for forcibly circulating bath water through a bath water circulation path, a filtration tank 8 for removing dirt in the bath water, and keeping the bath water at an appropriate temperature. And a cleaning device such as a sterilizing device (not shown) are connected in series via a connecting pipe and arranged and housed in a device body (not shown).

Further, when the bath water purifying line is contaminated with bacteria, a heat sterilizing line for heat sterilization with a bath water heated to a high temperature is constituted, or when the filter medium of the filtration tank 8 is contaminated, it is backwashed with the bath water. In addition, a switching valve,
A bypass pipe, a connecting pipe, a sub pump and the like are provided.

Reference numeral 11 denotes a bypass pipe which bypasses the main pump 6 from the hair catcher 5 and is connected to a connecting pipe between the main pump 6 and the filtration tank 8. The sub pump 12 is provided.

Reference numeral 13 denotes a connecting pipe branched from the discharge pipe 10 via the switching valves 14 and 15 and connected to a connecting pipe between the main pump 6 and the filtration tank 8 on the upstream side of a connection position of the bypass pipe 11. Reference numeral 16 denotes a connecting pipe that branches from a connecting pipe between the filtration tank 8 and the heater 9 and connects to the connecting pipe 13.

Reference numeral 17 denotes a bath water for heat sterilization or a bath water for back washing when the bath water purification conduit is contaminated with bacteria and sterilized by heat, or when the filter medium of the filtration tank 8 is contaminated and back washed. Is a drain pipe for discharging water out of the bath water purification pipe, and the drain pipe 17 is
It connects to the upper water absorption position of the filtration tank 8 via the drainage switching valve 18.

The drain pipe 17 is used for drainage.
A check valve 19 for preventing the backflow of air from is provided in the middle.

When the cleaning operation is selected in the apparatus configured as described above, the bath water in the bath water is sucked in by the water suction pipe 3, and
A large dirt is removed by a hair catcher 5, filtered in a filtration tank 8, sterilized by a sterilizer (not shown), heated by a heater 6, and then discharged again from a discharge pipe 10 to a bathtub by an arrow. Circulate.

When the heat sterilization operation is selected, the operation of the main pump is stopped and the operation of the sub-pump 12 is started, and the switching valves 14, 15, and 18 are switched to the heat sterilization operation side as shown in FIG. The bath water sucked in by the suction pipe 3 is cleaned of a large dirt by the hair catcher 5, and is discharged to the discharge pipe 10 through the bypass pipe 11, circulating through the filtration tank 8, a sterilizer (not shown), the heater 9, and the like. After that, the filter tank 8 and the heater 9 are again passed through the connecting pipe 13.
Circulate in a closed loop heat disinfection line as indicated by the arrow returning to the installed bath water purification line.

If the bath water continues to circulate through the closed loop heat sterilization pipe as described above, heating by the heater 9 is repeated, and the temperature rises to about 70 ° C., and the bath water purification pipe The bacteria adhering to the water are removed by heat sterilization, and when the heat sterilization is completed, the heat sterilization water is discharged from the drain pipe 17 to the outside of the bath water purification pipe by the heat sterilization water discharge pipe as shown by an arrow in FIG. I do.

At this time, since the check valve 19 is provided in the drain pipe 17, there is a large difference between the installation height of the bathtub and the apparatus, and a commercial model in which a large motor with a slow rise is provided. Even if there is, the backflow of air from the drain pipe 17 can be completely prevented.

Further, when the filter medium of the filtration tank 8 becomes dirty and the backwashing operation is selected, the switching valves 14, 15, and 18 are switched to the same backwashing line as the heat sterilizing water discharge line as shown in FIG. The bath water sucked by the suction pipe 3 flows in the filtration tank 8 in the reverse direction to backwash the filter medium, and the backwash water is drained by the drain pipe 17.
In this case, too, the reverse flow of air from the drain pipe 17 is completely prevented by the check valve 19.

[0034]

The present invention is configured as described above, and even if the bath water circulating in the bath water purification pipe is discharged from the drain pipe to the outside of the bath water purification pipe, the check valve is used to discharge the bath water from the drain pipe. It is possible to completely prevent air from flowing back to the bath cleaning line.

Therefore, the circulating pump runs idle due to the entrainment of air, and the drainage of the bath water from the drain pipe is not performed smoothly, or the air remains in the bath water purification pipe to facilitate the cleaning process. No more troubles such as no longer being carried out or dirt being discharged into the bathtub due to the air rush phenomenon.

In this way, when the bath water circulation path is contaminated with bacteria, a heat sterilization conduit for heat sterilization with the bath water heated to a high temperature is constituted, or when the filter medium of the filtration tank 8 becomes dirty, it is backwashed with the bath water. A bath water purifying apparatus comprising a backwash pipe or the like can be provided even in a business model having strict installation conditions and a large pump.

[Brief description of the drawings]

FIG. 1 is a piping diagram of an example (cleaning operation state).

FIG. 2 is a piping diagram of an example (heat sterilization operation state).

FIG. 3 is a piping diagram of an example (heat sterilized water, backwash water drainage state).

FIG. 4 is a piping diagram of a conventional example (cleaning operation state).

FIG. 5 is a piping diagram of a conventional example (heat sterilization operation state).

FIG. 6 is a piping diagram of a conventional example (heat sterilized water, backwash water drainage state).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Suction pipe 6 Main pump 8 Filtration tank 9 Heater 10 Discharge pipe 11 Bi-pipe pipe 12 Sub pump 14 Switching valve 15 Switching valve 17 Drain pipe 18 Drainage switching valve 19 Check valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Seiji Amano 3-1-1 Kyobashi, Chuo-ku, Tokyo Snake Eye Sewing Machine Industry Co., Ltd. (72) Inventor Koichi Asai 3-1-1 Kyobashi, Chuo-ku, Tokyo F-term (reference) in Snake's Eye Sewing Machine Co., Ltd. 4D037 AA09 AB03 BA18 BB06 CA02 4D064 AA11 BF33 BF39 BF40

Claims (2)

[Claims] 1. The bath water in a bathtub is sucked in by a suction pipe, and is subjected to a predetermined cleaning treatment such as sterilization, filtration, heating, etc. by a cleaning treatment device such as an ultraviolet sterilizer, a filtration tank, a heater, etc. in the apparatus main body, and then discharged. In a bath water purifying apparatus provided with a bath water purifying pipe which is discharged into a bathtub again through a pipe, the bath water is branched from the bath water purifying pipe via a switching valve to supply the bath water outside the bath water purifying pipe. A bath water purifier, characterized in that a check valve is provided in a drain pipe for discharging water to a drain pipe. 2. The bath water purifying line repeats circulating the bath water purifying line again without discharging the bath water after the cleaning treatment to the bath tub, so that the bath water is heated to a high temperature. 2. The bath water cleaning apparatus according to claim 1, further comprising a closed loop heat sterilization line for sterilizing the bath water cleaning line.