JPH10155683A - Pipeline cleaning device for bath water circulation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pertinently wash the circulation pipeline of a bath water circulation device, using only the delivery pressure of a circulating pump. SOLUTION: This device is made of a filter 2 for removing fine dust and impurities as contaminants from bath water, a circulating pump P for circulating the bath water, a circulation pipeline 5 for circulating the bath water across a bathtub 10, a jointing pipeline 6 for connecting the appropriate part of the circulation pipeline 5 near a suction position to the appropriate part thereof near a discharge position, and a bypass pipe 7 connected to the circulation pipeline 5 at such positions as before and after a filter position. At a pipeline washing process, only the bath water in the circulation pipeline 5 is made capable of being circulated via the jointing pipeline 6 and the bypass pipe 7. In addition, the bath water contained in the purified circulation pipeline 5 is made capable of being discharged outside the bathtub 10 at a discharge process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe line purifier in a bath water circulation apparatus capable of cleaning a circulation pipe only by a discharge pressure of a circulation pump.

[0002]

2. Description of the Related Art In a conventional bath water circulation device, a microbial membrane may adhere to the main body and piping of the device due to long-term use.
It needed to be washed. In addition, the method involves directly adding a disinfectant to hot water in a bathtub and circulating the apparatus.

[0003] Therefore, a large amount of detergent must be used in order to add a disinfectant to hot water in a bathtub, which is uneconomical. Since the worker may come into contact with the wastewater, a high-concentration disinfectant cannot be used, and the cleaning effect is limited.
During washing, rinsing after washing was troublesome because sewage circulated in the bathtub. There was also a hygiene problem. Therefore, there is a particular need to solve these.

[0004]

Means for Solving the Problems Accordingly, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems. As a result, the present inventors have found that the present invention provides a filter for filtering fine dust and dirt impurities from bath water, and a bath water. Pump, a circulation pipe through which bath water circulates from the bathtub to the bathtub by the circulation pump, an appropriate portion near the suction side of the circulation pipe, and near the outflow side of the circulation pipe. And a bypass pipe provided before and after the filter position in the circulation pipe. When the pipe is washed, a bath in the circulation pipe is supplied by a circulation pump. A pipe purifying device in a bath water circulating device that allows only water to circulate through the connecting pipe and the bypass pipe, and allows drainage of the purified and washed bath water in the circulating pipe to the outside of the bathtub during drainage. By circulation pump Only the discharge pressure at can be washed circulation line is obtained by solving the above problems.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a bath water circulation device mainly comprises a heater such as a sheath heater for heating bath water from a low temperature to a high temperature. 1, a filter 2 for filtering fine dirt and impurities from the bath water, a sterilizing device 3 for sterilizing the bath water, a circulation pump P for circulating the bath water, and And a circulation pipeline 5 that circulates from the bathtub 10 back to the bathtub 10.

The type of the filter 2 is a precision filter or a normal filter. The filter 2 is a filter filled with activated stone or activated carbon and used as a filter material for an adsorbent, or made of a woven or non-woven fabric. Some make up. In any case, fine dust and dirt are removed with impurities.

The connecting line 6 connects an appropriate portion of the circulation line 5 near the suction side and an appropriate portion near the outflow side of the circulation line 5, and discharges the circulation line 5. It is configured to connect an appropriate portion of the side conduit 5b.
In the circulation line 5, both ends of the bypass pipe 7 are connected before and after the position of the filter 2. Thereby, the circulation pump P, heater 1, filter 2,
A closed loop is formed by the circulation pipe line 5 in which the sterilizing device 3 is disposed and the connection pipe line 6. Further, in the closed loop, a loop that passes through the bypass pipe 7 without passing through the filter 2 is referred to as a cleaning closed loop. Name. That is, a closed circulation loop is constituted by the circulation pipe 5 in which the circulation pump P, the heater 1 and the sterilization device 3 are arranged, the connection pipe 6 and the bypass pipe 7. In the circulating conduit 5, the suction is performed at a position closer to the water supply side conduit 5a than at a connection point with both ends of the connecting conduit 6.
The outflow side is referred to as an outflow side pipeline 5b. The circulating pump P, the heater 1, the filter 2 and the sterilizer 3 are not provided on the water supply side pipe 5a and the outflow side pipe 5b. A pre-filter 11 is provided at a suction port of the water supply-side pipe 5a, and an ejection section 12 is provided at an outlet of the outflow-side pipe 5b so that a jet jet flows out.

There are embodiments in which a suitable valve is provided. In the first embodiment, the first three-way valve V1, the second
Three-way valve V2, drainage three-way valve V3, third three-way valve V4, fifth
Three-way valves V5 are used respectively. Specifically, the first three-way valve V1 is connected to the connection line 6 at a position closer to the suction side of the circulation line 5 and the second three-way valve V2 is connected to the connection line 6.
And a connection point between the circulation pipe 5 and the outflow side. Further, the drainage three-way valve V3 is provided at a position inside the second three-way valve V2, that is, in the circulation pipeline 5 excluding the water supply side pipeline 5a and the outflow side pipeline 5b. A fourth three-way valve V4 and a fifth three-way valve V5 at the front and rear ends of the bypass pipe 7;
Is provided. That is, the fourth three-way valve V4 is provided in the circulation pipe 5 on the water supply side of the filter 2 and the fifth three-way valve V5 is provided in the circulation pipe 5 on the outflow side of the filter 2. One end of a drain pipe 8 is connected to the drain side of the drain three-way valve V3, and the other end of the drain pipe 8 is configured to flow out of the bathtub 10. At the time of cleaning, the first three-way valve V1, the second
The flow directions of the three-way valve V2 and the drainage three-way valve V3 are controlled to switch to the pipeline circulation side, and the flow directions of the fourth three-way valve V4 and the fifth three-way valve V5 are switched to the bypass pipeline circulation side. That is, it is controlled so as to circulate in the cleaning closed loop.

When purifying the pipeline, the first three-way valve V1
The water supply side line 5a is closed, the connection line 6 and the circulation line 5 are in communication with each other, the second three-way valve V2 is closed, the outflow side line 5b is closed, and the connection line 6 and the circulation line 5 are in communication with each other, and the flowing water direction of the three-way drain valve V3 is switched to the pipeline circulation side, and the flowing water directions of the fourth three-way valve V4 and the fifth three-way valve V5 are each switched to the bypass pipeline circulation side. .
Thus, in the circulation line 5, the water supply side line 5a and the outflow side line 5b are closed, and the circulation line 5 in which the circulation pump P, the heater 1, and the sterilization device 3 are arranged, and the connection line. Bath water inside a closed loop including the passage 6 and the bypass pipe 7 is circulated by the operation of the circulation pump P. The circulation pump P
Is configured to allow a predetermined discharge pressure to flow out.However, in some cases, in the case of normal circulation, low-speed rotation such as low-speed circulation is performed, and in the case of pipe line cleaning, high-speed circulation such as high-speed circulation is performed. It may be configured to rotate. Further, in the first embodiment shown in FIGS. 1 to 3, the heater 1 and the sterilizer 3 are provided on the circulation line 5, but this may be constituted by another means.

In the above configuration, when the hot water pipeline cleaning is performed manually, as shown in FIG.
And a washing measuring means 16 (such as a simple timer) for measuring a washing time in response to the washing switch 15.

FIG. 7 is a flowchart of a hot water pipe cleaning by manual operation according to the present invention, in which a bather periodically cleans a hot water pipe. First, a determination is made as to whether or not to start the hot water pipeline cleaning (see S10). To start the cleaning, the cleaning switch 15 provided on the main body is input. Then, the washing mode is set (see S11), the sterilizing lamp of the sterilizing device is turned off (see S12), and the flowing directions of the first three-way valve V1, the second three-way valve V2, and the three-way drainage valve V3 are circulated in the pipeline. (See S13 to S15), and further, the respective flowing water directions of the fourth three-way valve V4 and the fifth three-way valve V5 are switched to the circulation side in the bypass pipe line (S13).
16 and S17). In this state, at the discharge pressure of the circulation pump P, the bath water in the cleaning closed loop pipe (except for two filters) circulates, and the pipeline cleaning operation starts (see S18). This state is a circulation as shown in FIG. In S19 and S20, the time of the pipeline cleaning is set in advance,
The time is measured by the cleaning measuring means 16 such as a simple timer. It is determined whether or not a predetermined time for the pipeline cleaning has elapsed (see S21). If the predetermined time has elapsed, it is determined whether or not the pipeline cleaning work has been completed (S22), and it is determined that the cleaning has been completed. Then, the flow direction of the drainage three-way valve V3 is switched to the drainage side (see S23), and the dirty bath water that has been washed is drained from the drain pipe 8. This state is a circulation as shown in FIG. Then, it is determined whether or not the drainage is completed (S2
4) When the drainage is confirmed, the flow direction of the three-way drainage valve V3 is switched to the circulation side in the pipeline (see S25). Then, the respective flowing water directions of the first three-way valve V1 and the second three-way valve V2 are switched to the normal circulation side (see S26 and S27). Further, the respective flowing water directions of the fourth three-way valve V4 and the fifth three-way valve V5 are switched to the normal circulation side (S28 and S29).
reference). The sterilizing lamp of the sterilizing device turns off (see S30). Then, the process returns to the flowchart of the normal operation of the bath water circulation device (see FIG. 8). This state is a circulation as shown in FIG.

When the inside of the circulation pipe is washed by an automatic operation, it is controlled by a block diagram as shown in FIG. That is, a central processing unit 20 (CPU) is provided, and a cleaning command unit 21 for controlling the start and time of pipe line cleaning and a valve control unit 22 for controlling various valves are provided. The cleaning command means 21 includes a time setting unit 21a for setting a cleaning start time for cleaning the inside of the circulation pipeline.
And a time storage unit 21b for storing the set cleaning start time and the cleaning time, and a time changing unit 21c for appropriately changing the cleaning start time and the cleaning time.

In the valve control means 22, when cleaning the pipeline, the flowing directions of the first three-way valve V1, the second three-way valve V2 and the drainage three-way valve V3 are switched to the circulation side in the pipeline. The flowing water directions of the four three-way valve V4 and the fifth three-way valve V5 are respectively switched to the bypass pipe circulation side. When the line cleaning is completed, the first three-way valve V1, the second three-way valve V2, the fourth three-way valve V4, and the fifth three-way valve V5 keep the same state, and the flowing direction of the drainage three-way valve V3 is changed. Is switched to the drain side. When the drainage is completed, the flow direction of the drainage three-way valve V3 is switched to the circulation side in the pipeline, and
The first three-way valve V1, the second three-way valve V2, the fourth three-way valve V4, and the fifth three-way valve V5 are controlled so as to be switched to the normal circulation side.

FIG. 10 is a flow chart of the pipeline cleaning by the automatic operation according to the present invention. In S31, it is determined whether or not the cleaning time in the pipeline is to be set. Hours, minutes, etc.) are set (see S32). Then, it is determined whether or not to change the cleaning time (see S33), and if not, the set time and the like are stored in the time storage unit 21b (see S34). Then, the cleaning time is measured by the cleaning instruction means 21 (see S35). It is determined whether or not the set time for the cleaning start has come (see S36), and when the set time for the start has come, the pipeline cleaning mode is set (see S33).
The sterilizing lamp of the sterilizing apparatus is turned off (see S38), and the flowing direction of each of the first three-way valve V1, the second three-way valve V2, and the drainage three-way valve V3 is switched to the circulation side in the pipeline (S39).
To S41). The flowing water directions of the fourth three-way valve V4 and the fifth three-way valve V5 are also switched to the bypass pipe circulation side, respectively (see S42 and S43). This state is a circulation as shown in FIG. Then, at the discharge pressure of the circulation pump P, the bath water in the cleaning closed loop pipe circulates, and the pipe line cleaning operation starts (see S44). The pipeline cleaning time and the like are controlled by the cleaning command means 21 and the cleaning time is set in advance, and it is determined whether a predetermined time for pipeline cleaning has elapsed and the pipeline cleaning has been completed. When it is determined that the washing is completed (see S45), the flowing direction of the three-way drain valve V3 is switched to the drain side (see S46), and the dirty bath water that has been washed is drained from the drain pipe 8. This state is a circulation as shown in FIG. Then, it is determined whether the drainage is completed (S47),
When the drainage is confirmed, the flow direction of the drainage three-way valve V3 is switched to the circulation side in the pipeline (see S48). And
The flowing direction of each of the first three-way valve V1, the second three-way valve V2, the fourth three-way valve V4, and the fifth three-way valve V5 is switched to the normal circulation side (see S49 to S52). The sterilizing lamp of the sterilizing device turns off (see S53). This state is a circulation as shown in FIG. Then, the process returns to the flowchart of the normal operation of the bath circulation device (see FIG. 7).

In the normal operation state of the bath water circulation device, as shown in FIG. 8, it is determined whether or not the bath water circulation device should be driven (see S1). The power of the bath water circulation device is turned on (see S2), the circulation pump P is driven (see S3), and the heater 1 is turned on.
Is turned on (see S4), the sterilizing lamp of the sterilizing device is turned on (see S5), and the bath water circulation device is driven. At this time, it is determined whether or not to perform the line cleaning (see S6), and if it is to be cleaned, a flowchart of a manual or automatic subroutine is performed. If it is determined that the washing is not to be performed, it is driven as it is, and it is determined whether or not the bath water circulation device is to be stopped (see S7).
If not stopped, turn on the power of the bath water circulation device S
Return to before 2.

In the second embodiment shown in FIGS. 4A and 4B, in the first embodiment, the second three-way valve V2 is used.
This is a type in which the second solenoid valve V2 'is provided at an appropriate position of the outflow-side pipe 5b closer to the bathtub 10 than the connection, which is simply a connection part of the connection pipe 6. The configuration is the same as that of the first embodiment shown in FIG. In the type of the second embodiment, in the manual or automatic flowchart (see FIGS. 7 and 10), the switching of the second three-way valve V2 on the circulation side in the pipeline is performed by closing the second solenoid valve V2 'and closing the second solenoid valve V2'. The normal circulation side switching of the three-way valve V2 is performed by opening the second solenoid valve V2 ', and the other flowcharts are the same.

In the third embodiment shown in FIGS. 5A and 5B, in the first embodiment, the first three-way valve V1
Is simply provided as a connecting portion of the connecting line 6, and the first solenoid valve V1 'is provided at an appropriate position of the water supply side line 5a closer to the bathtub 10 than the connecting portion. The configuration is the same as that of the first embodiment shown in FIG. In the third embodiment type, in the manual or automatic flowchart (see FIGS. 7 and 10), the first circulation valve V1 is switched on the circulation side in the pipeline, the first solenoid valve V1 'is closed, and the first solenoid valve V1' is closed. The normal circulation side switching of the three-way valve V1 is performed by opening the first solenoid valve V1 ', and the other flowcharts are the same.

In the fourth embodiment shown in FIGS. 6A and 6B, the first three-way valve V1 is different from the first embodiment.
And the second three-way valve V2 is deleted, and the second three-way valve V2 is simply used as a connecting portion of the connecting line 6, and the water supply side line 5 closer to the bathtub 10 than the connecting portion.
A type in which a first electromagnetic valve V1 'is provided at an appropriate position of a, and a second electromagnetic valve V2' is provided at an appropriate position of the outflow-side pipe line 5b closer to the bathtub 10 than the connection portion. Is
This is the same as the configuration of the first embodiment in FIG. In the fourth embodiment type, in the manual or automatic flowchart (see FIGS. 7 and 10), the switching of the first three-way valve V1 and the second three-way valve V2 on the circulation side in the pipeline is performed by the first solenoid valve V1 '. And the second solenoid valve V2 'is closed, and the normal circulation side switching of the first three-way valve V1 and the second three-way valve V2 is performed by the first solenoid valve V1'.
And the second solenoid valve V2 'is opened, and the other flowcharts are the same.

[0019]

First, according to the first aspect of the present invention, there is provided a filter 2 for filtering fine dirt and impurities which are contaminated from bath water,
A circulating pump P for circulating bath water, a circulating pipe line 5 for circulating bath water from the bathtub to the bathtub by the circulating pump,
A connection line 6 for connecting an appropriate portion of the circulation line 5 near the suction side and an appropriate portion of the circulation line 5 near the outflow side.
And a bypass pipe 7 provided before and after the filter position in the circulation pipe 5, and when the pipe is washed,
Only the bath water in the circulation pipe 5 can be circulated by the circulation pump P through the connection pipe 6 and the bypass pipe 7. First, the pipe cleaning device in the bath water circulating device that can be discharged to the outside eliminates the need to separately add a sterilizing agent, and can easily perform pipe cleaning at any time.
Cleaning can be performed only by the discharge pressure of the circulation pump motor.
Thirdly, since there is no possibility that the worker comes into contact with the disinfectant and the wastewater, the washing operation can be performed safely. Fourthly, it is not necessary to warm the water with a heater. By switching the circulation path, the sewage after washing is not drained directly to the tub but is discharged to the drain through a drain pipe, so that the tub 10 is not required to be rinsed, and there is little danger in terms of safety and health of workers. There are many benefits.

According to the second aspect of the present invention, the filter 2 for filtering fine dirt and contaminants from the bath water, a circulating pump for circulating the bath water, and the circulating pump returns the bath water from the bath tub to the bath tub. Pipe 5 which circulates as described above, an appropriate portion near the suction side of the circulation pipe 5 and the circulation pipe 5
A connecting pipe 6 for connecting an appropriate portion near the outflow side of
In the circulation line 5, a first three-way valve V is provided at a connection point between the connection line 6 and the suction side of the circulation line 5 which is a bypass tube provided before and after the filter position.
1, a second three-way valve V2 provided at a connection point between the connection pipe 6 and the outlet side of the circulation pipe 5, and a second three-way valve V2.
A three-way drain valve V3 provided in the circulating pipeline 5 and a four-way valve V4 and a fifth three-way valve V5 provided at the front and rear ends of the bypass pipe, respectively. By doing so, it is possible to relatively easily clean the pipeline by operating each valve, and the other configuration is the same as that of the first aspect of the invention and has the same effect.

According to a third aspect of the present invention, in the first or second aspect, the cleaning switch 15 for instructing the start of cleaning for cleaning the pipeline, and the cleaning measuring means 16 for measuring the cleaning time in response to the cleaning switch 15. By using a bath water disinfection device equipped with a cleaning function in a bath water circulation device provided with the following, the cleaning of a desired time (the time during which cleaning can be performed) can be achieved by starting the cleaning while operating the valves and devices manually. As a time, good pipeline cleaning can be performed.

According to a fourth aspect of the present invention, in the first aspect,
A cleaning command means 21 for starting and controlling a cleaning time, and a valve control means 22 for controlling the pipe cleaning, drainage and the like are provided. The cleaning command means 21 includes a time setting section for setting a cleaning start time. A bath water disinfection device having a cleaning function in a bath water circulation device having a set cleaning start time and a time storage unit for storing the cleaning time provides a start time and a cleaning time to be cleaned. In particular, by setting such a condition, it is possible to automatically perform line cleaning, and it is also possible to suitably drain the water in the circulation line by controlling the valve at this time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a first embodiment of the present invention.

FIG. 2 is a schematic view of the first embodiment of the present invention at the time of drainage.

FIG. 3 is a schematic diagram of the first embodiment of the present invention during normal operation.

FIG. 4A is a schematic diagram of a second embodiment of the present invention at the time of drainage, and FIG. 4B is a schematic diagram of a second embodiment of the present invention at the time of normal operation.

FIG. 5 (A) is a schematic diagram of a third embodiment of the present invention at the time of drainage, and FIG. 5 (B) is a schematic diagram of a third embodiment of the present invention at the time of normal operation.

FIG. 6A is a schematic view of a fourth embodiment of the present invention at the time of drainage, and FIG. 6B is a schematic view of a fourth embodiment of the present invention at the time of normal operation.

FIG. 7 is a flow chart of pipe cleaning by manual operation.

FIG. 8 is a flowchart of a normal operation state of the bath water circulation device.

FIG. 9 is a block diagram of pipe cleaning by automatic operation.

FIG. 10 is a flowchart of a protection tube cleaning by automatic operation.

[Explanation of symbols]

 2 ... Filter 5 ... Circulation line 5a ... Water supply side tube 5b ... Outflow side tube 6 ... Connecting line 7 ... Bypass tube 10 ... Bathtub 15 ... Wash switch 16 ... Wash measurement means 21 ... Wash command means 22 ... Valve control means P ... circulation pump V1 ... first three-way valve V2 ... second three-way valve V3 ... drainage three-way valve V4 ... fourth three-way valve V5 ... fifth three-way valve

Claims (4)

[Claims] A filter for filtering fine dirt and impurities from the bath water, a circulating pump for circulating the bath water, and a circulating pipe for circulating the bath water from the bath tub back to the bath tub by the circulating pump. A connecting line connecting an appropriate portion of the circulation line closer to the suction side and an appropriate portion of the circulation line closer to the outflow side; It consists of a bypass pipe, and at the time of washing the pipe, only the bath water in the circulation pipe can be circulated by the circulation pump through the connection pipe and the bypass pipe. A pipeline purifying device in a bath water circulation device, wherein bath water can be discharged to the outside of a bathtub. 2. A filter for filtering fine dirt and impurities from the bath water, a circulation pump for circulating the bath water, and a circulation line for circulating the bath water from the bath tub to the bath tub by the circulation pump. A connecting line connecting an appropriate portion of the circulation line closer to the suction side and an appropriate portion of the circulation line closer to the outflow side; A first three-way valve, which is provided at a connection point between the connection line and the suction side of the circulation line, and is provided at a connection point between the connection line and the outflow side of the circulation line. A second three-way valve, a drainage three-way valve provided in a circulation line near the second three-way valve, and a fourth three-way valve and a fifth three-way valve provided respectively at front and rear ends of the bypass pipe. A pipeline purification device in a bath water circulation device. 3. The cleaning apparatus according to claim 1, further comprising a cleaning switch for instructing a start of cleaning for cleaning the pipeline, and cleaning measuring means for measuring a cleaning time in response to the cleaning switch. A pipeline purification device in a bath water circulation device. 4. The cleaning instruction means according to claim 1, further comprising: a cleaning command means for starting and controlling a cleaning time; and a valve control means for controlling the pipe cleaning, drainage, etc. And a time storage unit for storing the set cleaning start time and the set cleaning time.