JPH1099221A - Pipe cleaner for circulation bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely remove scale adhered on a pipe inside wall to make cleaning work of the pipe inside easier, by communicate and connect air supply pipe tip ends of upstream side and downstream side from a circulation pump to constitute a circulation passage. SOLUTION: When an air valve is closed to actuate a circulation pump 2, bath water in a bathtub 1 is sucked through a suction port 3 by the circulation pump 2 and returned through a returning port 4 to the bathtub 1 to be circulated filtering and purifying bath water by a filtering part 5 during the circulation. When the piping inside is to be cleaned next time, the air valve 8 is opened in a condition of circulating operation similarly to supply air through both air supply pipes 7 on upstream and downstream from the circulation pump 2 to mix air into circulating hot bath water. When air mixed hot bath water is flown in the pipe inside, scale adhered on the pipe inside is securely peeled off and cleaning work for the pipe inside is easily preformed by vibration by hot bath water flow and ultrasonic cleaning action generated on cracking of air bubbles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating bath for filtering and purifying hot water in a bath by circulating the hot water in a bath by a circulation pump and filtering the hot water. The present invention relates to a circulation bath cleaning device for cleaning the inside of a pipe.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 11, bath water in a bathtub 1 is sucked in from a suction port 3 by a circulation pump 2 and returned into a bathtub 1 from a return port 4 while passing through a filtration unit 5. Circulating bathtubs that are circulated to filter and purify hot water are known. In this case, the circulation path is constituted by the circulation pipe 6, and the circulation pump 2 and the filtration unit 5 are provided in the middle of the circulation pipe 6.
Are arranged in this order from the upstream side, and the circulating pump 2, the filtering unit 5, and the like are built in and integrated with the circulating box 10. Further, the filtering section 5 is formed by filling a filtering medium to which microorganisms for decomposing filth are adhered, or is formed by a general filter made of activated carbon, nonwoven fabric or the like.

[0003]

However, in the prior art described above, if the circulation operation is performed for a long period of time, as shown in FIG. When the circulation operation is performed in this state, there is a disadvantage that the scale is peeled off from the inner wall of the pipe and is discharged into the bathtub 1 together with the hot water. Therefore, in the related art, a cleaning operation has been performed in which bath water containing a cleaning agent is circulated and then rinsed with clean water. In this case, it is necessary to drain and replace the hot water in the bathtub 1 many times, which is a troublesome cleaning work, and furthermore, the scale of the inner wall of the pipe cannot be completely removed, and a sufficient cleaning action cannot be obtained. Met.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art, that is, the problem is that the scale adhered to the inner wall of the pipe can be reliably removed, and the work for cleaning the inside of the pipe can be performed. The present invention is to provide a circulating bath tub pipe cleaning device that can easily perform the above.

[0005]

According to a first aspect of the present invention, there is provided a piping cleaning apparatus for a circulation bathtub, wherein hot water of the bathtub is sucked from a suction port by a circulation pump and returned into the bathtub from a return port. Together with a circulation bath for filtering and purifying the bath water by passing through the filtration unit, wherein the ends of both air supply pipes are connected to the circulation pumps of the circulation pipes constituting the circulation path, respectively, on the downstream side and the upstream side. Become.

Accordingly, in this case, the bath water in the bath tub is sucked from the suction port by the circulation pump, returned to the bath tub from the return port and circulated, and passed through the filtration unit during the circulation to filter the bath water. Normal circulation operation is performed so that the exhaust gas is purified. Also, when cleaning the inside of the pipe, by supplying air into the circulation pipe from both air supply pipes in the same circulating operation, both the downstream and upstream sides of the circulation pump are efficient. The supplied air is mixed into the circulating bath water, and the bath water, which is mixed with the air and has a high washing action, is circulated, and the scale attached to the inner wall of the pipe such as the circulating pipe is reliably dropped. Thus, the cleaning action is improved only by supplying air from both air supply pipes,
Cleaning work inside the pipe can be easily performed.

According to a second aspect of the present invention, there is provided a circulating bathtub pipe cleaning apparatus according to the first aspect of the present invention, wherein both the air supply pipes are branched and piped downstream of the air valve. It is characterized by the following. Therefore, in this case, in particular, it is possible to easily supply air from both air supply pipes simultaneously into the circulation pipe by opening one air valve, and conversely, by closing the air valve. Both air supply can be easily stopped at the same time.

According to a third aspect of the present invention, there is provided a circulating bath tub pipe cleaning apparatus according to the first or second aspect, wherein a connection portion of the air supply pipe downstream of the circulating pump is connected to a jet pump. And a connection portion of the air supply pipe upstream of the circulation pump is disposed near the suction port of the bathtub. Therefore, in this case, particularly, the connection part of the air supply pipe downstream of the circulation pump is near the circulation pump, and the connection part of the air supply pipe upstream of the circulation pump is near the suction port of the bathtub. Since it is arranged, air is mixed into the circulating bath water over a wide range over substantially the entire length of the circulation path from the suction port to the return port of the bathtub, and the downstream connection part is configured by a jet pump. As a result, the flow rate of the circulating bath water is strengthened by the jet pump without any trouble so that air does not excessively enter the circulating pump, and the cleaning action is further improved over a wide range.

According to a fourth aspect of the present invention, there is provided a pipe cleaning apparatus for a circulation bathtub according to the third aspect of the present invention, wherein a drainage switching valve is provided in a circulation pipe downstream of the jet pump. A drain pipe is branched from the drain switching valve. Therefore, in this case, in particular, by switching the drainage switching valve to the drainage pipe side during the cleaning work, the washing water used for pipe cleaning can be discharged from the drainage pipe without returning to the bathtub. In addition, the bath water in the bath tub is prevented from being stained, and the labor for replacing the bath water in the bath tub is reduced.

[0010] According to a fifth aspect of the present invention, there is provided a piping cleaning apparatus for a circulation bathtub according to the third aspect, wherein a filtration unit is provided in a circulation pipe between the circulation pump and the jet pump. Then, from the circulating pump to the jet pump via the bypass pipe without passing through the filtration section, from the jet pump to the filtration section via the return pipe, flow back through the filtration section and flow through the filtration section. Construct a backwash route to wash,
A drainage switching valve is provided in a circulation pipe on the downstream side of the filtration unit in the backwashing path, and a drainage pipe is branched from the drainage switching valve. Therefore, in this case, in particular, the hot water flows from the circulation pump to the filtration section via a bypass pipe, a jet pump, and a return pipe, and the hot water flows through the backwashing path that flows back through the filtration section, so that the water flows with the jet pump. The strength of the power is strengthened, and the air is mixed in. The bath water, which has a high action of washing off, can effectively backwash the inside of the filtration unit. In addition, at this time, by switching the drainage switching valve to the drainage pipe side, the wastewater used for the backwashing of the filtration unit can be discharged from the drainage pipe without returning to the bathtub without returning to the bathtub. Hot water is prevented from being stained, and labor for replacing the bath water in the bathtub is reduced.

[0011]

1 and 2 show a first embodiment of the present invention.
3 shows an embodiment corresponding to FIG. 3, and the piping cleaning apparatus for a circulating tub according to the embodiment sucks bath water from a tub 1 from a suction port 3 by a circulating pump 2 and returns the hot water from the return port 4 into the tub 1. A circulating bath for filtering and purifying the hot water by flowing and passing through the filtration unit 5, wherein the ends of the two air supply pipes 7 are located downstream and upstream of the circulation pump 2 of the circulation pipe 6 constituting the circulation path. Are connected to each other.

In the apparatus for cleaning a circulating bath tank according to the present embodiment, both air supply pipes 7 are formed by branch pipes downstream of the air valve 8. A connection part of the air supply pipe 7 on the downstream side of the circulation pump 2 is constituted by a jet pump 9 and arranged near the circulation pump 2, and the air supply pipe 7 on the upstream side of the circulation pump 2 is provided.
Is disposed near the suction port 3 of the bathtub 1.

In the middle of the circulation pipe 6, the circulation pump 2,
The filtration unit 5 and the jet pump 9 are interposed in this order from the upstream side, and the circulation pump 2, the filtration unit 5, the jet pump 9 and the air valve 8 are built in the circulation box 10 and integrated. . Further, the filtering section 5 is formed by filling a filtering medium to which microorganisms for decomposing filth are adhered, or is formed by a general filter made of activated carbon, nonwoven fabric or the like.

When the air valve 8 is opened, the jet pump 9 draws a large amount of air from the air supply pipe 7 and supplies the air into the circulation pipe 6 by the negative pressure of the jet pump 9. The circulating bath water mixed with is vigorously flowed. Further, a connection portion of the air supply pipe 7 on the upstream side of the circulation pump 2 is formed as a communication connection hole having a size approximately equal to that of the injection needle, and when the air valve 8 is opened, the negative pressure action causes it. A small amount of air is sucked into the circulation pipe 6 from the air supply pipe 7 and supplied. The air is not excessively introduced into the circulation pump 2 so that the circulation pump 2 does not become abnormal.

In this case, when the bath water into which the air is mixed flows inside the piping such as the circulation pipe 6, the vibration caused by the flow of the bath water and the ultrasonic cleaning action generated when the air bubbles are broken, The scale attached to the inner wall of the pipe is surely peeled off. The connection portion of the air supply pipe 7 upstream of the circulation pump 2 may be constituted by a throttle valve so that the air supply amount can be adjusted. The opening and closing operation of the air valve 8 may be simplified assuming that the opening and closing operation is performed electrically.

Accordingly, in the apparatus for cleaning a piping of a circulating tub according to the embodiment, as shown in FIG. 2, when the circulating pump 2 is operated by closing the air valve 8, the bath water in the tub 1 is changed to the circulating pump 2. Is sucked from the suction port 3 and returned to the bathtub 1 from the return port 4 to be circulated.
The normal circulation operation is performed so that the hot water passes through and is filtered and purified.

When cleaning the inside of the pipe, the air valve 8 is opened and the air supply pipe 7 is opened into the circulation pipe 6 as shown in FIG. By supplying the air, the air efficiently supplied on both the downstream side and the upstream side of the circulation pump 2 is mixed into the circulating bath water, and the air mixed with the air to enhance the washing action is circulated. Thus, the scale attached to the inner wall of the pipe such as the circulation pipe 6 is reliably dropped. As described above, the cleaning action is improved only by supplying the air from the two air supply pipes 7, and the inside of the pipe can be easily cleaned.

Further, in the apparatus for cleaning the piping of the circulating tub according to the present embodiment, it is possible to easily supply air from both air supply pipes 7 into the circulation pipe 6 simultaneously by opening one air valve 8. Yes, and conversely, the air valve 8
Can be closed to easily stop both air supplies simultaneously. The connection of the air supply pipe 7 downstream of the circulation pump 2 is near the circulation pump 2, and the connection of the air supply pipe 7 upstream of the circulation pump 2 is near the suction port 3 of the bathtub 1. The air is mixed with the circulating bath water over a wide range over substantially the entire length of the circulation path from the suction port 3 to the return port 4 of the bathtub 1. Moreover, the connection part on the downstream side is the jet pump 9
, The flow of the circulating bath water is enhanced by the jet pump 9 without hindrance so that air does not excessively enter the circulating pump 2, and the cleaning action is further improved over a wide range.

FIG. 3 shows a piping cleaning apparatus for a circulating tub according to another embodiment of the present invention which corresponds to the first, second, and third aspects of the present invention. 2, the return port 4 of the bathtub 1 is constituted by another jet pump 9 in the same apparatus as the pipe cleaning apparatus for a circulation bathtub of the embodiment shown in FIG. In this case, air is sucked into and supplied to the jet pump 9 from an air supply pipe 7 opened to the flange portion of the bathtub 1, and a jet jet containing bubbles is injected into the bathtub 1 from the return port 4 formed by the jet pump 9. It is spouted vigorously.

Therefore, in the apparatus for cleaning a piping of a circulating tub according to this embodiment, a massage effect can be obtained by the jet jet during a normal circulation operation. The rest is configured in the same manner as the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. 1 and 2, and is similar to the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. The operation and effect of the present invention are achieved.

FIGS. 4 and 5 show the first, second, third and fourth embodiments of the present invention.
4 shows a piping cleaning apparatus for a circulating tub according to still another embodiment corresponding to FIG. 4, wherein the piping cleaning apparatus for a circulating tub according to the embodiment is the same as the piping cleaning apparatus for a circulating tub of the embodiment shown in FIGS. In the same thing, a drainage switching valve 11 is provided in the circulation pipe 6 downstream of the jet pump 9 to
A drain pipe 12 is branched from the pipe 11.

FIG. 4 shows a state in which the pipes are washed. In this case,
The air valve 8 is open, and the drain switching valve 11 is switched to the drain pipe 12 side. FIG. 5 shows a normal circulation state, in which the air valve 8 is in the closed state,
11 is switched to the side of the circulation pipe 6 leading to the return port 4 of the bathtub 1.

Accordingly, in the apparatus for cleaning a piping of a circulating tub according to the embodiment, as shown in FIG. The washed water can be discharged from the drain pipe 12 without returning to the bathtub 1, thereby preventing the bathwater in the bathtub 1 from being stained and reducing the work of replacing the bathwater in the bathtub 1. . Further, assuming that the air valve 8 and the drain switching valve 11 are electrically opened and closed like an electromagnetic valve, the opening and closing operation of the air valve 8 and the switching operation of the drain switching valve 11 are performed in conjunction with each other. In addition, the switching operation between the normal circulation operation and the pipe cleaning operation is simplified. The rest of the configuration is the same as that of the circulating bath tub pipe cleaning device of the embodiment shown in FIGS.
The same operation and effect as in the circulating bathtub pipe cleaning apparatus of the embodiment shown in FIG.

FIG. 6 shows a piping cleaning apparatus for a circulating tub according to still another embodiment corresponding to claims 1, 2, 3, and 4 of the present invention. In the apparatus similar to the pipe cleaning apparatus for a circulation bathtub of the embodiment shown in FIGS. 4 and 5, the return port 4 of the bathtub 1 is constituted by another jet pump 9. In this case, bathtub 1
Air is sucked and supplied to the jet pump 9 from the air supply pipe 7 opened at the flange portion, and a jet jet of bubbles is spouted vigorously from the return port 4 formed by the jet pump 9 into the bathtub 1. .

Therefore, in the apparatus for cleaning a piping of a circulating tub according to the present embodiment, a massage effect is obtained by the jet jet during a normal circulating operation. The rest is configured in the same manner as the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. 4 and 5, and is the same as the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. The operation and effect of the present invention are achieved.

FIGS. 7, 8 and 9 show the first and second embodiments of the present invention.
3 and 5 show a piping cleaning apparatus for a circulating tub according to still another embodiment corresponding to FIGS. 3 and 5. In the same device as the device, a filtration unit 5 is provided in a circulation pipe 6 between the circulation pump 2 and the jet pump 9, and a jet pump is provided from the circulation pump 2 via a bypass pipe 13 without passing through the filtration unit 5. 9, from the jet pump 9 to the filtration unit 5 via the return pipe 14, and constitutes a backwashing path for backflow in the filtration unit 5 to wash the inside of the filtration unit 5. The drainage switching valve 11 is interposed in the circulation pipe 6 downstream of the filtration unit 5 in the washing route, and the drainage pipe 12 is branched from the drainage switching valve 11.

In this case, the filter section 5 is formed by filling a filter medium to which microorganisms for decomposing filth are adhered, and the filter medium is washed by flowing back inside the filter section. . Also, the circulation pump 2 in the circulation path
A backwash switching valve 15 is interposed in the circulation pipe 6 between the filter and the filtering section 5, and a bypass pipe 13 is branched from the backwash switching valve 15. An open / close valve 16 is interposed in the circulation pipe 6 between the branch portion of the filter and the filtration section 5, and is returned to the circulation pipe 6 between the jet pump 9 and the return port 4 of the bathtub 1 in the circulation path. A flow switching valve 17 is provided, and a return pipe 14 is branched from the return flow switching valve 17.

FIG. 7 shows a state of cleaning the pipes. In this case,
The air valve 8 is in the open state, the backwash switching valve 15 is switched to the circulation pipe 6 serving as a circulation path, the drainage switching valve 11 is switched to the filtration unit 5 side, and the on-off valve 16 is in the open state. The flow switching valve 17 is switched to the side of the circulation pipe 6 leading to the return port 4 of the bathtub 1. FIG. 8 shows a normal circulation state. In this case, the state is the same as the pipe cleaning state except that the air valve 8 is closed. FIG. 9 shows the backwashing state of the filtration unit 5. In this case, the backwashing switching valve 15 is switched to the side of the bypass pipe 13 serving as the backwashing path, and the on-off valve 16 is in the closed state. The valve 17 is switched to the return pipe 14 side which is a backwash path, and the drain switching valve 11 is switched to the drain pipe 12 side. In this case, the air valve 8 is open.

Accordingly, in the apparatus for cleaning a piping of a circulating tub according to this embodiment, as shown in FIG. 9, the circulating pump 2 reaches the filtration unit 5 via the bypass pipe 13, the jet pump 9, and the return pipe 14, and By passing the bath water through the backwashing path that flows backward in the filtration section 5, the flow is enhanced by the jet pump 9 and the inside of the filtration section 5 is improved by the bath water that has been mixed with air and has a high washing action. Backwashing can be performed effectively. Moreover, at that time, the drain switching valve 11 is connected to the drain pipe 12.
By switching to the side, the sewage used for backwashing of the filtration unit 5 can be discharged from the drain pipe 12 without returning to the bathtub 1, thereby preventing the bathwater in the bathtub 1 from being stained. At the same time, the work of replacing the bath water in the bathtub 1 is reduced. The rest is configured in the same manner as the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. 1 and 2, and is similar to the circulating bath pipe cleaning apparatus of the embodiment shown in FIGS. The operation and effect of the present invention are achieved.

FIG. 10 shows a piping cleaning apparatus for a circulating tub according to still another embodiment corresponding to claims 1, 2, 3, and 5 of the present invention. In the apparatus similar to the circulating bathtub pipe cleaning apparatus of the embodiment shown in FIGS. 7, 8, and 9, the return port 4 of the bathtub 1 is constituted by another jet pump 9. In this case, air is sucked into and supplied to the jet pump 9 from an air supply pipe 7 opened to the flange portion of the bathtub 1, and a jet jet containing bubbles is injected into the bathtub 1 from the return port 4 formed by the jet pump 9. It is spouted vigorously.

Therefore, in the apparatus for cleaning the piping of the circulating tub according to the embodiment, the massage effect is obtained by the jet jet during the normal circulating operation. The rest of the configuration is the same as that of the circulating bath tub pipe cleaning device of the embodiment shown in FIGS.
The same functions and effects as those of the apparatus for cleaning a piping of a circulating tub according to the embodiment shown in FIGS.

[0032]

As described above, in the pipe cleaning apparatus for a circulation bath according to the first aspect of the present invention, air efficiently supplied to both the downstream side and the upstream side of the circulation pump is mixed into the circulation bath water. The hot water that has been mixed with the air and has a high washing action is circulated, the scale attached to the inner wall of the pipe such as the circulation pipe is reliably dropped, and the washing action is performed only by supplying air from both air supply pipes. It is possible to easily perform the cleaning operation of the inside of the pipe.

In the apparatus for cleaning a piping of a circulating bath according to the second aspect of the present invention, air is easily supplied simultaneously from both air supply pipes into the circulation pipe by opening one air valve. Conversely, the air valve can be closed and the air supply can be easily stopped at the same time.

In the apparatus for cleaning a piping of a circulating bathtub according to the third aspect of the present invention, air is supplied to the circulating bathwater over a wide range substantially over the entire length of the circulation path from the suction port to the return port of the bathtub. The flow of the circulating bath water is strengthened by the jet pump without hindering the air from being mixed into the circulating pump, and the cleaning action is further improved over a wide range.

In the apparatus for cleaning a piping of a circulating tub according to a fourth aspect of the present invention, the cleaning water used for the cleaning of the pipes is preferably set by switching the drainage switching valve to the drainage pipe side during the cleaning operation. Can be discharged from the drain pipe, so that the bath water in the bath tub is prevented from being stained, and the work of replacing the bath water in the bath tub is reduced.

Further, in the apparatus for cleaning piping of a circulating tub according to claim 5 of the present invention, in particular, by passing hot water through the backwashing path, the inside of the filtration section can be effectively backwashed. At this time, by switching the drainage switching valve to the drainage pipe side, the wastewater used for the backwashing of the filtration unit can be discharged from the drainage pipe, thereby preventing contamination of the bath water in the bathtub. The work of replacing the bath water in the bathtub is reduced.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram illustrating a pipe cleaning state of a circulation bathtub pipe cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is an overall configuration diagram illustrating a normal circulation state of the piping cleaning device of the circulation bathtub.

FIG. 3 is an overall configuration diagram illustrating a normal circulation state of a piping cleaning apparatus for a circulation bathtub according to another embodiment.

FIG. 4 is an overall configuration diagram illustrating a pipe cleaning state of a pipe cleaning apparatus for a circulation bathtub according to still another embodiment.

FIG. 5 is an overall configuration diagram illustrating a normal circulation state of the piping cleaning device of the circulation bathtub.

FIG. 6 is an overall configuration diagram illustrating a normal circulation state of a piping cleaning apparatus for a circulation bathtub according to still another embodiment.

FIG. 7 is an overall configuration diagram illustrating a pipe cleaning state of a circulating bath tub pipe cleaning apparatus according to yet another embodiment.

FIG. 8 is an overall configuration diagram illustrating a normal circulation state of the piping cleaning device for the circulation bathtub.

FIG. 9 is an overall configuration diagram illustrating a backflow cleaning state of a filtration unit of the piping cleaning device for the circulation bathtub.

FIG. 10 is an overall configuration diagram illustrating a normal circulation state of a piping cleaning apparatus for a circulation bathtub according to still another embodiment.

FIG. 11 is an overall configuration diagram illustrating a circulating bathtub as a conventional example.

FIG. 12 is an enlarged sectional view showing a circulation pipe in the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation pump 3 Suction port 4 Return port 5 Filtration part 6 Circulation pipe 7 Air supply pipe 8 Air valve 9 Jet pump 11 Drainage switching valve 12 Drainage pipe 13 Bypass pipe 14 Return pipe

Claims (5)

[Claims] 1. A circulating bath for sucking bath water from a bath tub from a suction port with a circulation pump, returning the bath water from a return port into the bath tub, and filtering and purifying the bath water by passing through a filtration unit. A pipe cleaning device for a circulating tub in which the ends of both air supply pipes are connected to the downstream side and the upstream side of the circulating pump of the circulating pipe constituting the circulating path, respectively. 2. The apparatus according to claim 1, wherein both air supply pipes are formed by branching pipes downstream of the air valve. 3. A connection part of the air supply pipe downstream of the circulation pump is constituted by a jet pump and arranged near the circulation pump, and a connection part of the air supply pipe upstream of the circulation pump is connected to a bathtub. 3. The apparatus for cleaning a piping of a circulating tub according to claim 1, wherein the apparatus is arranged near the suction port. 4. The apparatus for cleaning a circulation bathtub according to claim 3, wherein a drainage switching valve is provided in a circulation pipe downstream of the jet pump, and a drainage pipe is branched from the drainage switching valve. 5. A circulating pipe between the circulating pump and the jet pump is provided with a filtering section, and the circulating pump reaches the jet pump via a bypass pipe without passing through the filtering section. From the backflow switching valve provided in the downstream circulation pipe to the filtration section via the return pipe branched from the pipe, constitute a backwash path for backflow in the filtration section to wash the inside of the filtration section, 4. The apparatus for cleaning a circulation bathtub according to claim 3, wherein a drainage switching valve is interposed in a circulation pipe downstream of the filtration unit in the backwashing path, and a drainage pipe is branched from the drainage switching valve.