JPH0739907U - Circulating filtration water heater cleaning device - Google Patents

Abstract

(57) [Summary] [Purpose] The cleaning work is easy, the cleaning work time is shortened, the cleaning efficiency is further improved, and the amount of detergent and the cleaning time can be freely set according to the dirt, and the cleaning work is also possible. Reduce costs. [Structure] A cleaning device 50 is configured to include a tubular body 51 and an air bleeding mechanism 70. The cylindrical main body 51 includes a suction port connection portion 52 and a discharge port connection portion 53 that are connected to the suction port 30 and the discharge port 31 of the circulation filtration water heater, respectively, and a detergent can be poured into the upper end opening. First detergent inlet 5
4 is formed. The air bleeding mechanism 70 is detachably attached to the first detergent input port 54. A retention chamber 58 for retaining air bubbles generated during cleaning is formed between the first detergent inlet 54 and the outlet connection portion 53. The air bleeding mechanism 70 includes a lid portion 56 detachably attached to the first detergent input port 54, and an air bleeding valve 55 attached to the lid portion 56.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cleaning device for a circulating filtration water heater that circulates hot water in a bath to heat it to maintain a set temperature and to filter the hot water.

[0002]

[Prior art]

 The circulation filtration water heater used in the bathtub is not only effective in saving fuel consumption and tap water, but also can maintain the hot water temperature set at all times, and uses expensive natural stones such as barley stone or ceramics as the filter material. Therefore, it has the advantage that clean hot water can be obtained for a long period of time, and recently it has become widely used at home. As shown in FIG. 10, the circulation filtration water heater includes a water heater body 2, a filter unit 4, and an intake / exhaust unit 7. The water heater main body 2 is provided with a secondary filter 11, a circulation pump 12, a flow rate sensor 13, a temperature sensor 14 and a heater 15 in this order from the suction port 10 side, and they are communicated with each other by a communication path 16. The water heater main body 2 has a suction port 10 communicating with a suction port 30 of the suction / exhaust unit 7, sucks the hot water 6 in the bathtub 5, heats and holds it at a desired set temperature, and sends it to the filtering unit 4. ing. 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 to keep the hot water temperature at the preset temperature. The circulation pump 12 is provided with an air bleeder inside, but when the air of a certain amount or more enters, the circulation pump 12 automatically stops and the operation of the water heater body 2 is stopped. The filtering unit 4 includes a filter medium case 20 that contains the filter medium 3 therein, and filters the suction hot water 6A sent from the water heater body 2 and discharges it to the discharge port 31 of the discharge unit 7. The suction / exhaust unit 7 is installed 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 communicated with the filter medium case 20 upward and discharged from the filter section 4. Discharge ports 31 for returning 6 to the bathtub 5 are provided respectively. A primary filter (not shown) is always removably attached to the suction port 30.

When the circulation filtration water heater described above has been used for about several months, dirt is attached to the filter medium 3 and sludge is accumulated. If the sludge is left to accumulate, the inside of the filter medium 3 and the water heater body 2 will be clogged, and noise and equipment failure will be caused by the load on the motor (not shown) that drives the circulation pump 12. It is necessary to wash the filter medium 3 because it may lead to problems and also causes problems such as deterioration of filtration capacity due to deterioration of circulation power. For cleaning the filter medium 3 made of natural stone such as barley stone or ceramics, a foaming detergent having high cleaning efficiency is used. In the procedure for washing the circulation filtration water heater, first, the power of the water heater main body 2 is turned off, and then the water level of the hot water 6 in the bathtub 5 is lowered to a position between the discharge port 30 and the suction port 31. Next, a bucket containing hot water and detergent is put in the bathtub 5, the suction / exhaust unit 7 with the primary filter removed is separated from the bathtub 5 and immersed in the bucket, and the water heater body 2 is intermittently operated. The intermittent operation is performed to stop the water flow when the water heater main body 2 is stopped so that air bubbles are easily generated, and the water heater is soaked and washed. When the water heater body 2 is stopped and air enters the circulation pump 12 through the discharge port 30, the operation of the circulation pump 12 is stopped. Therefore, in order to operate the water heater main body 2 again, priming water is introduced from the suction port 31 to operate. 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 remove such complication, a cleaning device 8 shown in FIG. 11 is known as a conventional cleaning device for a circulating filter superheater. The cleaning tool 8 is composed of a transparent plastic cylindrical body 41 in which the detergent 40 is stored in advance. In the tubular body 41, a suction port connection tubular portion 42 and a discharge port connection tubular portion 43 are formed at positions corresponding to the suction port 30 and the discharge port 31 of the suction and discharge unit 7, respectively. 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 suction port connection cylinder part 42 and the discharge port connection cylinder part 43 can be connected to the suction port 30 and the discharge port 31 by adapters 46 and 47, respectively. 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 in the upper portion of the cylindrical body 41. The cleaning liquid discharge passage 44 is connected to the hose 45, and the other end of the hose 45 is drawn out of the bath 5 and connected to the drain 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, peel off 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 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 45. Next, the water heater body 2 is operated. By the operation of the water heater main body 2, the detergent inside the tubular body 41 circulates in the path of the suction / discharge unit 7, the water heater main body 2, the filtration unit 4, the suction / discharge unit 7, and the tubular body 41, and the filter medium 3 is washed. Is done. At the time of washing, air is generated in the path due to foaming of the detergent, and the washing liquid expands in a state containing the air and overflows from the outlet of the hose 45 through the washing liquid discharge passage 44 of the tubular body 41. At the same time, air enters the circulation pump 12 and the circulation pump 12 stops (stops the water heater body 2) within a few minutes. At this point, the washing by circulation is completed. Keep it in that state for a while (about 25 minutes) and wash it. 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 operate the water heater inside the bath 5. It is designed to be rinsed with hot water 6.

[0006]

[Problems to be solved by the device]

 In the conventional cleaning device for the circulating filtration water heater, air is inevitably mixed into the cleaning liquid due to the foaming action of the detergent during cleaning, so that the air enters the circulating pump 12 and the circulating pump 12 stops. The cleaning by circulation can be performed for only a few minutes until the cleaning is completed. Therefore, even if the surface of the filter medium 3 can be cleaned, the inside of the filter medium 3 cannot be cleaned, and the filter medium 3 cannot be used for a short period of time. There is a problem that you have to do the washing many times. Further, during cleaning, not only is the cleaning liquid, which has been expanded containing air, overflowed from the cylindrical body 41 to the outside through the hose 45 in a large amount, and the detergent is wasted, and the cleaning liquid gradually contained in the cleaning liquid during circulation is washed. 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 washing by immersion, the temperature of the washing liquid is lowered and the washing efficiency is lowered. In addition, regardless of the degree of contamination of the circulation filtration water heater to be cleaned, since only a predetermined amount of detergent can be stored in the tubular body 41, the degree of contamination (length of use and total use There is a problem that the amount of detergent cannot be adjusted according to the number of people. Moreover, the cleaning tool 8 once used has a problem that it is difficult to reuse and it must be thrown away, and the cleaning cost becomes high.

The present invention has been made in order to eliminate the above-mentioned drawbacks. The cleaning work is easy, the cleaning work time is shortened, the cleaning efficiency is improved, and the amount of detergent and the cleaning time can be freely changed according to the stains. (EN) Provided is a cleaning device for a circulating filtration water heater, which can be set and can reduce the cleaning cost.

[0008]

[Means for Solving the Problems]

 The circulating filter water heater cleaning device according to the present invention is provided with a suction port for sucking hot water in a tank, a pump which is in communication with the suction port and is driven based on a command signal from a control unit, and is delivered from this pump. A heating unit that heats and holds the suction hot water to a desired temperature according to a command signal from the control unit, a filtration unit that communicates with the heating unit and stores a filter medium inside to filter the 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 inlet connection portion and an outlet connection portion that are connected to the suction inlet and the discharge outlet so as to be connectable to each other. 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. Of.

[0009]

[Action]

 The cleaning device for a circulating filtration water heater according to the present invention comprises a suction inlet port and an outlet port of the circulating filtration water heater, which are respectively connected to the suction port connection portion and the discharge port connection portion of the cylindrical body, and which is provided with a first detergent inlet port. The amount of detergent is adjusted according to the amount of dirt, and an air bleeding mechanism is attached to this first detergent inlet, and the circulating filtration water heater is operated to circulate the detergent along with the suction hot water. Rinse the inside of the vessel. 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 part of the tubular body from the outlet connection opening, and the accumulated air is discharged from the air bleeding mechanism to the outside. The washing liquid discharged and deaerated is again sucked into the circulation filtration water heater from the suction port connection part and continues to circulate at the set temperature.

[0010]

【Example】

 Hereinafter, the present invention will be described with reference to illustrated embodiments. 1 is an overall perspective view showing a cleaning device of a circulating 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 cleaning device of FIG. 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 includes a water heater main body 2, a filter unit 4, and an intake / exhaust unit 7.

As shown in FIG. 5, the water heater body 2 includes a secondary filter 11, a circulation pump 12, a flow rate sensor 13, a temperature sensor 14, and a heater 15 in order from the suction port 10 side, and a communication path 16 Each is communicated. 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. The water heater body 2 also includes a control unit 17. In the control unit 17, 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 flow rate detection signal and the hot water temperature detection signal are respectively sent from the flow rate sensor 13 and the temperature sensor 14. Sent out. The control unit 17 sends a command signal to the heater 15 and the motor 12A based on these detection signals and the preset temperature set in advance to keep the hot water temperature at the preset temperature and adjust the circulation amount. There is. The filter unit 4 is provided with a filter medium case 20 that houses the filter medium 3 therein, and the filter medium case 20 is housed in a case cover 21. The filter medium case 20 is connected to the heater 15 side of the water heater main body 2 on the upstream side and to the outlet 31 of the intake / exhaust unit 7 via the tertiary filter 22 on the downstream side. Is filtered and discharged to the intake / exhaust unit 7. The suction / exhaust unit 7 is mounted in the bathtub 5 by a suction cup 34, and has a suction port 30 for sucking the hot water 6 of the bathtub 5 below and a discharge port 31 above, and the discharge port 31 is discharged from the filter medium case 20. The filtered hot water 6A is returned to the bath 5. A primary filter 33 (see FIG. 4) is detachably attached to the suction port 30.

By the way, as shown in FIG. 1 to FIG. 3, the washing device 50 of the circulation filtration water heater is provided with a cylindrical main body 51 having a circulation passage 51A therein, and upper and lower parts of the cylindrical main body 51, respectively. The suction port connection portion 52 and the discharge port connection portion 53, the first detergent input port 54 formed in the upper end opening of the tubular body 51, and the first detergent input port 54 that can be detachably attached. And a lid 56 having an automatic air bleeding valve 55 attached thereto. The cylindrical main body 51 has a large diameter portion 57 whose upper portion is formed to have a large diameter, and an air retention chamber 58 is formed inside between the discharge port connecting portion 53 and the first detergent input port 54. To be done. The suction port connection portion 52 and the discharge port connection portion 53 are respectively connected to the suction port 30 and the discharge port 31 of the suction / discharge unit 7. The air bleeding mechanism 70 includes an automatic air bleeding valve 55 and a lid 56. The lid portion 56 is provided with a communication hole 59 communicating with the air retention chamber 58, and the automatic air bleeding valve 55 is attached to the upper portion of the lid portion 56 in communication with the communication hole 59.

A connection cylinder body 60 is detachably inserted into the large-diameter portion 57 according to the water level of the hot water 6 with respect to the level of the first detergent feeding port 54. That is, it is designed to be installed when the level of the first detergent input port 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 input port 61 is formed in the upper end opening of the connection tubular body 60. Like the tubular body 51, the connection tubular body 60 has a lid portion 56 that can be attached to the second detergent inlet 61. Further, when the connecting cylinder body 60 is connected to the cylindrical main body 51, the inner chamber 60A of the connecting cylinder body 60 communicates with the air retention chamber 58, and the space in which the air is retained expands upward. ing.

As shown in FIG. 3, the discharge port connection portion 53 is inserted into one end of the silicone hose 65 having a substantially L-shaped elasticity and the silicon hose 65, and is connected to the discharge port 31 of the suction / discharge unit 7. It is composed of a connectable hard vinyl chloride pipe 66 and a connection hose 65A. The silicon hose 65 is press-fitted into a 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 outlet 31 of the intake / exhaust unit 7 via a connection hose 65A made of a silicon hose.

The suction port connection portion 52 is configured by mounting a cylindrical connector 68 having a hollow inside in a communication hole 67 formed below the tubular body 51. A half-divided connecting sleeve 69 connected to the suction port 31 is formed on the outer side of the connecting connector 68. The discharge port connection portion 53 and the suction port connection portion 52 can be connected to each other by an adapter (not shown) according to the position and diameter 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 washing device 50 is connected to the exhaust port 31 of the intake / exhaust unit 7 via the connection hose 65A in a state where the water heater body 2 is operated. (See FIG. 6), and the connector 68 is connected to the suction port 30 of the suction / discharge unit 7. Next, from the first detergent input port 54, the amount of the detergent is adjusted according to the degree of dirt and is input (see FIG. 7), and the lid 56 is attached to the first detergent input port 54 (see FIG. 8). ). As shown in FIG. 5, the detergent charged in the tubular main body 51 is dissolved in the hot water 6 and is used as a cleaning liquid. The connector 68 of the suction port connecting portion 52, the suction port 30 of the suction / exhaust unit 7, the secondary filter 11, The circulation pump 12, the flow sensor 13, the heater 15, the filter medium case 20, the tertiary filter 22, the discharge port 31 of the suction / discharge unit 7, the vinyl chloride pipe 66, 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 is 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 through the communication hole 59 of the lid 56. Is released to the outside from the automatic air bleeding valve 55. Therefore, the cleaning liquid from which air bubbles have been removed flows back from the connection connector 68 to the water heater body 2 side, and continues to circulate 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. 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. The part 56 is attached to perform the above operation. When the connection cylinder 60 is attached, the air retention chamber 58 communicates with the internal chamber 60A of the connection cylinder 60, and the space in which the air is retained can be expanded, so a large amount of detergent is used and a large amount of air bubbles are generated. Even if it occurs, 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 / exhaust unit 7, and one end of the rinse hose 71 is discharged from the suction / exhaust unit 7 as shown in FIG. It is connected to the outlet 31 and the other end is arranged near the drain of the bath 5. Then, the water heater body 2 is activated and the remaining hot water 6 is used for rinsing.

FIG. 9 shows a modified example of the present invention, in which a connection cylinder body 160 having the same diameter in the upper and lower sides is detachably inserted into the large diameter portion 157 of the cylindrical body 151. It has become so. 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 cylinder 60. The connection cylinder 160 can be capped with a lid 156 having an automatic air bleeding valve 155 attached to a third detergent inlet 161. Further, when the connecting cylinder 160 is connected to the cylindrical main body 151, the inner chamber 160A of the connecting cylinder 160 communicates with the air retention chamber 158, so that the space in which air is retained expands upward. There is. In this modified example, the lid portion 156 is configured to be attached only to the connecting tubular body 160. Therefore, the connection cylinder 160 having a different height depending on the water level of the hot water 6 is selected and inserted into the large diameter portion 157 of the cylindrical main body 151, and the third detergent insertion port of the selected connection cylinder 160 is selected. The lid 156 is attached to the 161.

[0020]

[Effect of device]

 As described above, according to the present invention, the inlet and outlet of the circulating water heater are connected so that they can be connected to the inlet and outlet, respectively, and a detergent is provided at the upper end opening. Since the first main body has a cylindrical body having a first detergent input port that can be put in and an air bleeding mechanism that is detachably attached to the first detergent input port, the cleaning work can be performed easily. The cleaning time can be shortened. Furthermore, 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)

[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.