JP2502493Y2 - Circulating filtration water heater cleaning device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning device for a circulating filtration water heater which circulates hot water in a bath to heat it to keep it at a set temperature and to filter it.

[0002]

2. Description of the Related Art Circulating filtration water heaters used in bathtubs are not only effective in saving fuel consumption and tap water, but can maintain a constant hot water temperature at all times, and the filter medium is made of natural stones such as barley stone, which is expensive. Since ceramics is used for filtration, there is an advantage that clean hot water can be obtained for a long period of time, and recently it has been widely used at home. As shown in FIG. 10, the circulation filtration water heater includes a water heater body 2 and a filtration unit 4.
And an intake / exhaust unit 7. The water heater body 2 is
Secondary filter 11 and circulation pump 1 in order from the suction port 10 side
2, flow sensor 13, temperature sensor 14 and heater 15
And the communication paths 16 communicate with each other. In the water heater body 2, the suction port 10 has a suction port 30 of the suction / discharge unit 7.
The hot water 6 in the bathtub 5 is sucked in, heated to a desired set temperature, held, and delivered to the filtration unit 4. Further, the water heater body 2 includes a control unit (not shown). When the flow rate sensor 13 and the temperature sensor 14 detect the state of the hot water 6 sucked into the water heater body 2, the control unit sends a flow rate detection signal and a hot water temperature detection signal from the flow rate sensor 13 and the temperature sensor 14, respectively. To be done. The control unit sends a command signal to the heater 15 and the circulation pump 12 on the basis of these detection signals and the preset temperature set therein to keep the hot water temperature at the preset temperature. The circulation pump 12 is provided with an air bleeding portion inside, but it automatically stops when a certain amount of air or more enters, and the water heater main body 2
Operation is stopped. The filter unit 4 is provided with a filter medium case 20 in which the filter medium 3 is housed, and filters the suction hot water 6A sent from the water heater main body 2 and the discharge unit 7
To the discharge port 31 of. The suction / exhaust unit 7 is mounted in the bathtub 5 by a suction cup 7A, and has a suction port 30 for sucking the hot water 6 in the bathtub 5 downward, and a filtered hot water 6 that is communicated with the filter medium case 20 upward and is discharged from the filtering section 4. Each of the outlets 31 is returned to the bath 5. A primary filter (not shown) is always removably attached to the suction port 30.

In the above-described circulating filtration water heater, when about several months have passed from the start of use, dirt is attached to the filter medium 3 and sludge is accumulated. If the sludge buildup is left to stand, the filter medium 3
And the inside of the water heater body 2 may be clogged, which may cause noise and equipment failure due to the load on the motor (not shown) that drives the circulation pump 12, and the filtration capacity due to the decrease in circulation power. Therefore, the filter medium 3 needs to be washed. For cleaning the filter medium 3 made of natural stone such as barley stone or ceramics, a foaming detergent having a high cleaning efficiency is used. In the procedure of washing the circulation filtration water heater, first, the power of the water heater body 2 is turned off, and then the water level of the hot water 6 in the bathtub 5 is dropped to a position between the discharge port 30 and the suction port 31. Next, a bucket filled with hot water and a detergent is put in the bathtub 5, the suction / exhaust unit 7 without the primary filter is separated from the bathtub 5 and immersed in the bucket, and the water heater body 2 is intermittently operated. The intermittent operation is to stop the water flow when the water heater main body 2 is stopped so that air bubbles are easily generated and the water is washed by dipping it. When the water heater body 2 is stopped, the outlet 30
When air enters into the circulation pump 12 from above, the operation of the circulation pump 12 is stopped. For this reason, in order to operate the water heater main body 2 again, priming water is introduced from the suction port 31 and operated. When the washing is completed, the bucket is removed from the bathtub 5, the suction / exhaust unit 7 is attached to the bathtub 5 again, and the remaining hot water 6 is rinsed.

As described above, in cleaning the circulation filtration water heater, since it is complicated, workability has been required to be improved. By the way, in order to eliminate such complication, a cleaning device 8 shown in FIG. 11 is known as a conventional cleaning device for a circulation filtration water heater. The cleaning tool 8 is composed of a transparent plastic cylindrical body 41 in which a detergent 40 is stored in advance. The tubular body 41 is located at positions corresponding to the suction port 30 and the discharge port 31 of the suction / discharge unit 7, respectively.
2 and the discharge port connection tubular portion 43 are respectively formed. Seals are attached to the openings of the suction port connection cylinder part 42 and the discharge port connection cylinder part 43 to prevent the internal detergent from leaking to the outside. The inlet port connecting tubular portion 42 and the outlet port connecting tubular portion 43 can be connected to the inlet port 30 and the outlet port 31 by adapters 46 and 47, respectively. At the top of the tubular body 41,
A cleaning liquid discharge passage 44 for discharging a part of the cleaning liquid and the air flowing into the cylindrical body 41 to the outside is formed. The cleaning liquid discharge passage 44 is connected to the hose 45, and the hose 45
The other end of is drawn out of the bath 5 and connected to a drainage port.

A cleaning operation using the conventional cleaning tool 8 will be described. First, the power of the water heater body 2 is turned off to stop the circulation of the hot water 6. Next, the seals attached to the openings of the suction port connection tubular portion 42 and the discharge port connection tubular portion 43 of the tubular body 41 are peeled off to prevent the detergent inside from leaking into the hot water 6. Gently submerge it in hot water 5 to completely remove the air inside. Then, the suction port connection cylinder part 42 and the discharge port connection cylinder part 43 are connected to the suction port 30 and the discharge port 31 via the adapters 46 and 47, and the cleaning liquid discharge passage 44 is connected to the hose 4.
Connect to 5 respectively. Next, the water heater body 2 is operated. Due to the operation of the water heater main body 2, the detergent inside the tubular body 41 circulates in the path of the suction / exhaust unit 7, the water heater main body 2, the filtering unit 4, the suction / exhaust unit 7, and the tubular body 41, so that the filter medium 3 is washed. Done. At the time of washing, air is generated in the path due to the foaming of the detergent, and the washing liquid expands in a state containing the air, and the tubular body 4
1 overflows from the outlet of the hose 45 through the cleaning liquid discharge passage 44, and air enters the circulation pump 12 to stop the circulation pump 12 within a few minutes (stop the water heater main body 2).
To do. At this point, the washing by circulation is completed. For a while (about 25 minutes), keep the condition, soak and wash. Finally, the cleaning tool 8 is removed from the suction / exhaust unit 7, the rinsing hose is connected to the discharge port 30 of the suction / exhaust unit 7 and the drain port outside the bath 5, and the water heater main body 2 is operated again to remove the hot water in the bath 5. 6 is used to perform rinsing.

[0006]

SUMMARY OF THE INVENTION In the conventional cleaning device for a circulating filtration water heater, the circulating pump 1 cannot avoid the inclusion of air into the cleaning liquid due to the foaming action of the detergent during cleaning.
It is possible to perform the cleaning by circulation for only a few minutes until the air enters into the inside 2 and the circulation pump 12 is stopped. Therefore, even if the dirt on the surface of the filter medium 3 can be washed,
There is a problem that the inside of the filter medium 3 cannot be washed and must be washed repeatedly for a short period of use. Further, not only is the cleaning liquid, which has been expanded including air, overflowed from the tubular body 41 to the outside through the hose 45 at the time of cleaning, which is a waste of detergent, but the cleaning liquid gradually contained in the cleaning liquid at the time of cleaning by circulation. However, there is a problem that the cleaning efficiency is reduced due to the reduced amount. Since the water heater main body 2 must be stopped for a long time at the time of dipping and washing, the temperature of the washing liquid is lowered and the washing efficiency is lowered. In addition, regardless of the degree of dirt on the circulation filtration water heater to be washed, only a predetermined amount of detergent can be stored in the tubular body 41, so the degree of dirt (length of use period and total number of users) However, there is a problem that the amount of detergent cannot be adjusted according to the amount. In addition, the cleaning tool 8 once used is difficult to reuse and has to be thrown away, resulting in a high cleaning cost.

The present invention has been made in order to eliminate the above-mentioned drawbacks. The cleaning work is easy and the cleaning work time is shortened.
Further, the present invention provides a cleaning device for a circulating filtration water heater, which can increase the cleaning efficiency, can freely set the amount of the detergent and the cleaning time according to the dirt, and can reduce the cleaning cost.

[0008]

A cleaning device for a circulation filtration water heater according to the present invention is driven based on a suction port for sucking hot water in a tank and a command signal from a control unit which communicates with the suction port. A pump, a heating unit that heats and holds the suction hot water sent from this pump to a desired temperature in response to a command signal from the control unit, and communicates with this heating unit, and a filter medium is housed inside to supply the suction hot water. In a circulating filtration water heater having a filtering part for filtering and a discharge port for returning the suctioned hot water filtered by the filtering part to the inside of the tank, a suction port connection communicating with the suction port and the discharge port, respectively. And a discharge port connecting portion, and a cylindrical main body having a first detergent input port formed at the upper end opening into which a detergent can be input, and an air bleeding mechanism detachably attached to the first detergent input port. Be prepared One in which the.

[0009]

The washing apparatus for the circulation filtration water heater according to the present invention is constructed such that the suction port and the discharge port of the circulation filtration water heater are connected to the suction port connection portion and the discharge port connection portion of the cylindrical main body, respectively. Adjust the amount of detergent according to the dirt from the detergent input port and add it, attach an air bleeding mechanism to this first detergent input port, operate the circulation filtration water heater to circulate the detergent together with the suction hot water,
Rinse the inside of the circulating filtration water heater. The air bubbles generated during washing are mixed with the washing liquid and reach the tubular body from the filtration section, and are collected and accumulated at the upper portion of the tubular body from the opening of the outlet connection portion,
The accumulated air is released to the outside from the air bleeding mechanism, and the deflated cleaning liquid is again sucked into the circulation filtration water heater from the suction port connection portion and continues to circulate at the set temperature.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.
FIG. 1 is an overall perspective view showing a cleaning device of a circulation filtration water heater according to an embodiment of the present invention, FIG. 2 is an explanatory view showing an assembled state of the cleaning device of FIG. 1, and FIG. 3 is a vertical section of the cleaning device of FIG. Floor plan,
FIG. 4 is an overall view showing the circulation filtration water heater, and FIG. 5 is an explanatory view showing a communication path between the circulation filtration water heater and the washing device. As shown in FIG. 4, the circulation filtration water heater is configured to include a water heater body 2, a filtration unit 4, and an intake / exhaust unit 7.

As shown in FIG. 5, the water heater main body 2 includes a secondary filter 11 and a circulation pump 1 in order from the suction port 10 side.
2, flow sensor 13, temperature sensor 14 and heater 15
And the communication paths 16 communicate with each other. The secondary filter 11 communicates with the suction port 30 of the suction / discharge unit 7. The circulation pump 12 is driven by a motor 12A. In addition, the water heater body 2 has a control unit 17
It has. When the flow rate sensor 13 and the temperature sensor 14 detect the state of the hot water 6 sucked into the water heater body 2, the control unit 17 detects the flow rate sensor 1 and the temperature sensor 14.
3 and the temperature sensor 14 send a flow rate detection signal and a hot water temperature detection signal, respectively. Control unit 1
The reference numeral 7 sends a command signal to the heater 15 and the motor 12A on the basis of these detection signals and a preset temperature set in advance to maintain the hot water temperature at the preset temperature and adjust the circulation amount. The filtering unit 4 is provided with a filter medium case 20 having the filter medium 3 accommodated therein, and the filter medium case 20 is accommodated in a case cover 21. Filter media case 2
As for 0, the upstream side is on the heater 15 side of the water heater body 2, and the downstream side is through the tertiary filter 22 and the discharge port 3 of the intake / exhaust unit 7.
The suction hot water 6A communicated with each of the water heaters 1 and sent from the water heater body 2 is filtered and discharged to the suction / discharge unit 7. The suction / exhaust unit 7 uses the suction cup 34 for the bathtub 5
It has a suction port 30 installed inside and a suction port 30 for sucking in the hot water 6 of the bathtub 5, and a discharge port 31 at the upper part.
1 is filtered suction hot water discharged from the filter medium case 20
A is returned to the bathtub 5. A primary filter 33 (see FIG. 4) is detachably attached to the suction port 30.

By the way, the washing device 50 of the circulation filtration water heater
As shown in FIG. 1 to FIG.
A cylindrical body 51 having A, a suction port connection portion 52 and a discharge port connection portion 53 respectively provided on the upper and lower sides of the cylindrical body 51, and a first detergent dispenser formed at an upper end opening of the cylindrical body 51. Port 54 and lid 56 detachably attached to the first detergent inlet 54 and having an automatic air bleeding valve 55
And is configured. The cylindrical main body 51 has a large diameter portion 57 whose upper portion is formed to have a large diameter, and has a discharge port connecting portion 53 and a first diameter portion 57.
An air retention chamber 58 is formed inside between the detergent inlet 54 and the detergent inlet 54. The suction port connection portion 52 and the discharge port connection portion 53 are
The suction / discharge unit 7 is connected to the suction port 30 and the discharge port 31, respectively. The air bleeding mechanism 70 includes an automatic air bleeding valve 55 and a lid 56. Lid 5
6 has a communication hole 59 communicating with the air retention chamber 58, and the automatic air bleeding valve 55 communicates with the communication hole 59 and is attached to the upper portion of the lid 56.

In the large diameter portion 57, a connecting cylinder body 60 is detachably attached according to the level of the hot water 6 with respect to the level of the first detergent feeding port 54. That is, the first
It is designed to be attached when the level of the detergent inlet 54 is lower than the water level of the hot water 6. The lower portion of the connecting tubular body 60 is formed to have a diameter slightly smaller than the inner diameter of the large diameter portion 57, and the upper portion is formed to have the same diameter as the large diameter portion 57. A second detergent inlet 61 is formed at the upper end opening of the connection cylinder 60. Connection cylinder 6
In the case of 0, like the cylindrical body 51, the lid portion 56 can be attached to the second detergent input port 61. Furthermore, the connecting cylinder 60
When connected to the tubular main body 51, the internal chamber 60A of the connection tubular body 60 communicates with the air retention chamber 58 and expands the space in which air is retained upward.

The outlet connection portion 53, as shown in FIG.
A silicon hose 65 having a substantially L-shaped elasticity, and a hard vinyl chloride pipe 66 which is inserted into one end of the silicon hose 65 and is connectable to the discharge port 31 of the suction / discharge unit 7.
And a connection hose 65A. The silicon hose 65 is press-fitted into the hole 63 formed in the cylindrical main body 51 and is detachably attached. The other end of the silicon hose 65 is extended inside the cylindrical main body 51 and is bent downward toward the suction port connection portion 52 side. The vinyl chloride pipe 66 is connected to the discharge port 31 of the suction / discharge unit 7 via a connection hose 65A made of a silicon hose.

The suction port connecting portion 52 is constructed by mounting a hollow cylindrical connecting connector 68 in a communication hole 67 formed below the cylindrical main body 51. Connector 6
On the outer side of 8, a half-split connection sleeve 69 connected to the suction port 31 is formed. The discharge port connection portion 53 and the suction port connection portion 52 can be connected by an adapter (not shown) according to the positions and diameters of the suction port and the discharge port according to the type of the suction / discharge unit 7.

Next, the operation of the cleaning device 50 according to the above embodiment will be described with reference to FIGS. 6 to 8 in accordance with the cleaning procedure. First, the primary filter 33 shown in FIG. 4 is removed from the intake / exhaust unit 7, and the vinyl chloride pipe 66 of the cleaning device 50 is connected to the connection hose 65 with the water heater body 2 in operation.
It is connected to the outlet 31 of the intake / exhaust unit 7 via A (see FIG.
), The connecting connector 68 to the suction port 3 of the suction and discharge unit 7.
Connect to 0. Next, from the first detergent input port 54, the amount of detergent is adjusted according to the degree of dirt and is input (see FIG. 7), and the lid portion 56 is attached to the first detergent input port 54 (see FIG. 8). ). As shown in FIG. 5, the detergent charged in the cylindrical main body 51 is melted in the hot water 6 and is used as a cleaning liquid, so that the connector 68 of the suction port connecting portion 52 and the suction port 3 of the suction / exhaust unit 7 are discharged.
0, secondary filter 11, circulation pump 12, flow sensor 1
3, heater 15, filter medium case 20, tertiary filter 22,
Exhaust port 31 of suction / exhaust unit 7, vinyl chloride pipe 6
6 and the silicon hose 65 are circulated in this order. When the cleaning liquid is used to clean the filter medium 3 on which dirt has been adsorbed, bubbles are generated, and the bubbles are mixed with the cleaning liquid and guided to the cylindrical main body 51. Then, when the cleaning liquid containing air bubbles is discharged from the discharge end of the silicon hose 65, only the air bubbles rise above the cylindrical main body 51 and are collected in the air retention chamber 58, and the communication hole 5 of the lid 56.
It is released to the outside from the automatic air bleeding valve 55 via 9.
For this reason, the cleaning liquid from which air bubbles have been removed is connected to the connector 6
It returns from 8 to the main body 2 side of the water heater, and continues circulating at the set temperature. The cleaning liquid from which air bubbles have been removed continuously flows into the filter medium 3 and can be cleaned by circulating for a desired time depending on the degree of the stain, so that the inside of the filter medium 3 can be cleaned of the stain. it can.

By the way, when the water level of the hot water 6 in the bathtub 5 is high and the first detergent inlet 54 is below the water surface of the hot water 6, the connecting tubular body 60 is inserted into the large diameter portion 57 of the tubular main body 51. Then, the second detergent input port 61 is exposed on the water surface of the hot water 6 so that the detergent can be input (see FIG. 6). After the detergent is input, the second detergent input port 61 is covered. Attach part 56,
The above operation is performed. When the connecting cylinder 60 is attached, the air retention chamber 58 is the inner chamber 6 of the connecting cylinder 60.
Since the space in which air stays can be expanded by communicating with OA, even if a large amount of detergent is used and a large amount of air bubbles are generated, the air can be efficiently discharged to the outside.

When the washing is completed, the operation of the water heater body 2 is stopped, the washing device 50 is removed from the suction / discharge unit 7, and one end of the rinse hose 71 is connected to the discharge port of the suction / discharge unit 7 as shown in FIG. 31 and the other end is arranged near the drain of the bath 5. Then, the water heater main body 2 is operated and the remaining hot water 6 is used for rinsing.

FIG. 9 shows a modified example of the present invention, in which the connecting cylinder body 160 having the same diameter in the upper and lower sides is the cylindrical body 1
The large diameter portion 157 of 51 is detachably inserted. The connection cylinder 160 is composed of a plurality of cylinders having different heights, and is appropriately selected according to the water level of the hot water 6. A third detergent input port 161 is formed at the upper end opening of the connection tubular body 60. The connection cylinder 160 can be capped with a lid 156 having an automatic air bleeding valve 155 attached to the third detergent inlet 161. Further, when the connecting cylinder 160 is connected to the cylindrical body 151, the inner chamber 160A of the connecting cylinder 160 communicates with the air retention chamber 158, and the space in which air is retained expands upward. . In this modified example, the lid portion 156 includes the connection cylindrical body 160.
It is configured to be worn only on. Therefore, hot water 6
The connection cylinders 160 having different heights are selected according to the water level, and inserted into the large diameter portion 157 of the cylindrical body 151, and the lid portion 156 is attached to the third detergent insertion port 161 of the selected connection cylinder 160. It is designed to be attached.

[0020]

As described above, according to the present invention, the upper end opening is provided with the suction port connection portion and the discharge port connection portion that are respectively connected to the suction port and the discharge port of the circulation filtration water heater so that they can be connected to each other. Since the cylindrical main body having the first detergent input port into which the detergent can be input and the air bleeding mechanism detachably attached to the first detergent input port are provided, the cleaning work can be performed easily. The cleaning time can be shortened. Further, since the amount of detergent and the washing time can be adjusted according to the degree of dirt, the washing can be performed efficiently. Moreover, since the cleaning device can be repeatedly used, the cleaning cost can be reduced.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a cleaning device for a circulation filtration water heater according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing an assembled state of the cleaning device of FIG.

3 is a vertical cross-sectional view of the cleaning device of FIG.

FIG. 4 is an overall view showing a circulation filtration water heater.

5 is an explanatory diagram showing a communication path between the circulation filtration water heater and the washing device of FIG. 1. FIG.

FIG. 6 is an explanatory view showing a state in which the cleaning device of FIG. 1 is attached to a circulation filtration water heater.

FIG. 7 is an explanatory diagram showing a usage state of the cleaning device of FIG. 1.

FIG. 8 is an explanatory diagram showing a usage state of the cleaning device of FIG. 1.

FIG. 9 is a vertical cross-sectional view of a cleaning device showing a modified example of the present invention.

FIG. 10 is an explanatory diagram showing a rinse state of the circulation filtration water heater.

FIG. 11 is an explanatory view showing a conventional cleaning device.

[Explanation of symbols]

 2 Circulation filtration water heater 30 Suction port of circulation filtration water heater 31 Discharge port of circulation filtration water heater 50 Washing device 51 Cylindrical body 52 Suction port connection portion 53 Discharge port connection portion 54 First detergent inlet port 55 Automatic air vent valve (Air bleeding valve) 56 Lid portion 59 Communication hole 70 Air bleeding mechanism

Claims (7)

(57) [Scope of utility model registration request] 1. A suction port for sucking hot water in a bath, a pump which is in communication with this suction port and is driven based on a command signal from a control unit, and a suction hot water sent from this pump are fed from a control unit. A heating unit that heats and holds a desired temperature in response to a command signal, and a filtering unit that communicates with this heating unit, accommodates a filter medium inside and filters suction hot water,
In a circulation filtration water heater having an outlet for returning the suctioned hot water filtered by the filtration unit to the inside of the tank, a suction port connecting portion and an outlet connecting portion which are connected so as to be connectable to the suction inlet and the discharge outlet, respectively. The first that is equipped with and can put detergent into the top opening
A cleaning device for a circulation filtration water heater, comprising: a cylindrical main body having a detergent inlet formed therein, and an air bleeding mechanism detachably attached to the first detergent inlet. 2. A retention chamber is formed between the first detergent inlet of the tubular body and an outlet connection provided above the inlet connection so as to retain air bubbles generated during cleaning. The cleaning device for a circulating filtration water heater according to claim 1. 3. The air bleeding mechanism includes a lid portion which is detachably attached to the first detergent input port and has a communication hole formed therein, and a lid body which is attached to the lid portion and which is in the cylindrical body through the communication hole. An air bleeding valve that discharges air to the outside is provided, and the cleaning device for a circulating filtration water heater according to claim 1 or 2, is configured. 4. A tank is formed so that a lower part is removably connected to the first detergent input port, and an air bleeding mechanism is removably attached to the upper part to form a second detergent input port into which a detergent can be input. 4. The cleaning device for a circulation filtration water heater according to claim 1, further comprising a connecting cylinder connected to the cylindrical main body according to the water level. 5. The circulation according to claim 1, wherein the discharge port connecting portion has an open end extending in the tubular body, which is bent toward the suction port connecting portion side. Filter water heater cleaning device. 6. The discharge port connecting portion comprises a substantially L-shaped elastic hose and a hard pipe that is inserted into the hose and can be connected to the discharge port, and the hose is formed in a tubular body. The cleaning device for a circulation filtration water heater according to claim 5, wherein the device is press-fitted into the hole and is detachably attached. 7. The circulation filtration water heater according to claim 1, wherein the suction port connection portion and the discharge port connection portion are connected to the suction port and the discharge port via adapters, respectively. Cleaning device.